diff --git a/Readme.md b/Readme.md
index 5606172..26ac8c7 100644
--- a/Readme.md
+++ b/Readme.md
@@ -38,10 +38,12 @@ After publish config file setup your credential. you can see this in your config
 
 ```
 "sandbox"         => env("BKASH_SANDBOX", true),
+
 "bkash_app_key"     => env("BKASH_APP_KEY", ""),
 "bkash_app_secret" => env("BKASH_APP_SECRET", ""),
 "bkash_username"      => env("BKASH_USERNAME", ""),
 "bkash_password"     => env("BKASH_PASSWORD", ""),
+
 "callbackURL"     => env("BKASH_CALLBACK_URL", "http://127.0.0.1:8000/bkash/callback"),
 'timezone'        => 'Asia/Dhaka', 
 ```
@@ -50,10 +52,12 @@ After publish config file setup your credential. you can see this in your config
 
 ```
 BKASH_SANDBOX=true  #for production use false
+
 BKASH_APP_KEY=""
 BKASH_APP_SECRET=""
 BKASH_USERNAME=""
 BKASH_PASSWORD=""
+
 BKASH_CALLBACK_URL=""
 ```
 
@@ -64,7 +68,7 @@ php artisan vendor:publish --provider="Karim007\LaravelBkashTokenize\BkashTokeni
 
 ```
 
-### 2. you can override the routes (routes must be in authenticate bkash prefer it)
+### 2. you can override the routes
 ```php
 Route::group(['middleware' => ['web']], function () {
     // Payment Routes for bKash
@@ -109,6 +113,12 @@ public function createPayment(Request $request)
         $request_data_json = json_encode($request->all());
 
         $response =  BkashPaymentTokenize::cPayment($request_data_json);
+        //$response =  BkashPaymentTokenize::cPayment($request_data_json,1); //last parameter is your account number for multi account its like, 1,2,3,4,cont.. default param is 1
+
+        //store paymentID and your account number for matching in callback request
+        // dd($response) //if you are using sandbox and not submit info to bkash use it for 1 response
+
+
         if (isset($response['bkashURL'])) return redirect()->away($response['bkashURL']);
         else return redirect()->back()->with('error-alert2', $response['statusMessage']);
     }
@@ -139,13 +149,26 @@ array[
 ```php
 public function callBack(Request $request)
     {
-        //paymentID=TR00117B1674409647770&status=success&apiVersion=1.2.0-beta
+        //callback request params
+        // paymentID=TR00117B1674409647770&status=success&apiVersion=1.2.0-beta
+        //using paymentID find the account number for sending params
+
         if ($request->status == 'success'){
             $response = BkashPaymentTokenize::executePayment($request->paymentID);
+            //$response = BkashPaymentTokenize::executePayment($request->paymentID, 1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
+
             if (!$response){
                 $response =  BkashPaymentTokenize::queryPayment($request->paymentID);
+                //$response = BkashPaymentTokenize::queryPayment($request->paymentID,1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
+
+            }
+            if (isset($response['statusCode']) && $response['statusCode'] == "0000" && $response['transactionStatus'] == "Completed") {
+                /*
+                 * for refund need to store
+                 * paymentID and trxID
+                 * */
+                return BkashPaymentTokenize::success('Thank you for your payment', $response['trxID']);
             }
-            if (isset($response['statusCode']) && $response['statusCode'] == "0000") return $this->success('Thank you for your payment',$response['trxID']);
             return BkashPaymentTokenize::failure($response['statusMessage']);
         }else if ($request->status == 'cancel'){
             return BkashPaymentTokenize::cancel('Your payment is canceled');
@@ -212,6 +235,8 @@ public function searchTnx($trxID)
        "statusMessage":"Successful"
     }*/
     return BkashPaymentTokenize::searchTransaction($trxID);
+    //return BkashPaymentTokenize::searchTransaction($trxID,1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
+
 }
 ```
 
@@ -238,6 +263,8 @@ public function refund(Request $request)
            "completedTime":"2023-01-23T15:53:29:120 GMT+0600"
         }*/
         return BkashRefundTokenize::refund($paymentID,$trxID,$amount,$reason,$sku);
+        //return BkashRefundTokenize::refund($paymentID,$trxID,$amount,$reason,$sku, 1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
+
     }
 ```
 ### 9. refund status check
@@ -259,8 +286,12 @@ public function refundStatus(Request $request)
            "completedTime":"2023-01-23T15:53:29:120 GMT+0600"
         }*/
         return BkashRefundTokenize::refundStatus($paymentID,$trxID);
+        //return BkashRefundTokenize::refundStatus($paymentID,$trxID, 1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
+
     }
 ```
+N.B. If you are using single account dont need to think about account parameter ignore it just simply use as usal
+
 #### Required APIs
 0. **Developer Portal** (detail Product, workflow, API information): https://developer.bka.sh/docs/checkout-process-overview
 1. **Grant Token :** https://developer.bka.sh/v1.2.0-beta/reference#gettokenusingpost
diff --git a/config/bkash.php b/config/bkash.php
index 9891edc..5b075c5 100644
--- a/config/bkash.php
+++ b/config/bkash.php
@@ -2,10 +2,27 @@
 
 return [
     "sandbox"         => env("BKASH_SANDBOX", true),
+
     "bkash_app_key"     => env("BKASH_APP_KEY", ""),
     "bkash_app_secret" => env("BKASH_APP_SECRET", ""),
     "bkash_username"      => env("BKASH_USERNAME", ""),
     "bkash_password"     => env("BKASH_PASSWORD", ""),
+
+    "bkash_app_key_2"     => env("BKASH_APP_KEY_2", ""),
+    "bkash_app_secret_2" => env("BKASH_APP_SECRET_2", ""),
+    "bkash_username_2"      => env("BKASH_USERNAME_2", ""),
+    "bkash_password_2"     => env("BKASH_PASSWORD_2", ""),
+
+    "bkash_app_key_3"     => env("BKASH_APP_KEY_3", ""),
+    "bkash_app_secret_3" => env("BKASH_APP_SECRET_3", ""),
+    "bkash_username_3"      => env("BKASH_USERNAME_3", ""),
+    "bkash_password_3"     => env("BKASH_PASSWORD_3", ""),
+
+    "bkash_app_key_4"     => env("BKASH_APP_KEY_4", ""),
+    "bkash_app_secret_4" => env("BKASH_APP_SECRET_4", ""),
+    "bkash_username_4"      => env("BKASH_USERNAME_4", ""),
+    "bkash_password_4"     => env("BKASH_PASSWORD_4", ""),
+
     "callbackURL"     => env("BKASH_CALLBACK_URL", "http://127.0.0.1:8000/bkash/callback"),
     'timezone'        => 'Asia/Dhaka',
 ];
diff --git a/src/Controllers/BkashTokenizePaymentController.php b/src/Controllers/BkashTokenizePaymentController.php
index 1d8be4a..31d4e87 100644
--- a/src/Controllers/BkashTokenizePaymentController.php
+++ b/src/Controllers/BkashTokenizePaymentController.php
@@ -25,6 +25,7 @@ public function createPayment(Request $request)
         $request_data_json = json_encode($request->all());
 
         $response =  BkashPaymentTokenize::cPayment($request_data_json);
+        //$response =  BkashPaymentTokenize::cPayment($request_data_json,1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
         /*array[
           "statusCode" => "0000"
           "statusMessage" => "Successful"
@@ -41,18 +42,26 @@ public function createPayment(Request $request)
           "transactionStatus" => "Initiated"
           "merchantInvoiceNumber" => "63cd99abe6bae"
         ]*/
+
+        //store paymentID and your account number for matching in callback request
+        // dd($response) //if you are using sandbox and not submit info to bkash use it for 1 response
+
         if (isset($response['bkashURL'])) return redirect()->away($response['bkashURL']);
         else return redirect()->back()->with('error-alert2', $response['statusMessage']);
     }
 
     public function callBack(Request $request)
     {
-        //paymentID=TR00117B1674409647770&status=success&apiVersion=1.2.0-beta
+        //callback request params
+        // paymentID=TR00117B1674409647770&status=success&apiVersion=1.2.0-beta
+        //using paymentID find the account number for sending params
 
         if ($request->status == 'success'){
             $response = BkashPaymentTokenize::executePayment($request->paymentID);
+            //$response = BkashPaymentTokenize::executePayment($request->paymentID, 1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
             if (!$response){ //if executePayment payment not found call queryPayment
                 $response = BkashPaymentTokenize::queryPayment($request->paymentID);
+                //$response = BkashPaymentTokenize::queryPayment($request->paymentID,1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
             }
 
             if (isset($response['statusCode']) && $response['statusCode'] == "0000" && $response['transactionStatus'] == "Completed") {
@@ -87,6 +96,7 @@ public function searchTnx($trxID)
            "statusMessage":"Successful"
         }*/
         return BkashPaymentTokenize::searchTransaction($trxID);
+        //return BkashPaymentTokenize::searchTransaction($trxID,1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
     }
 
     public function refund(Request $request)
@@ -109,6 +119,7 @@ public function refund(Request $request)
            "completedTime":"2023-01-23T15:53:29:120 GMT+0600"
         }*/
         return BkashRefundTokenize::refund($paymentID,$trxID,$amount,$reason,$sku);
+        //return BkashRefundTokenize::refund($paymentID,$trxID,$amount,$reason,$sku, 1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
     }
     public function refundStatus(Request $request)
     {
@@ -126,5 +137,6 @@ public function refundStatus(Request $request)
            "completedTime":"2023-01-23T15:53:29:120 GMT+0600"
         }*/
         return BkashRefundTokenize::refundStatus($paymentID,$trxID);
+        //return BkashRefundTokenize::refundStatus($paymentID,$trxID, 1); //last parameter is your account number for multi account its like, 1,2,3,4,cont..
     }
 }
diff --git a/src/Facade/BkashPaymentTokenize.php b/src/Facade/BkashPaymentTokenize.php
index e4945b3..c53a6b7 100644
--- a/src/Facade/BkashPaymentTokenize.php
+++ b/src/Facade/BkashPaymentTokenize.php
@@ -4,12 +4,11 @@
 use Illuminate\Support\Facades\Facade;
 
 /**
- * @method static cPayment($request_data_json)
- * @method static executePayment($paymentID)
- * @method static queryPayment($paymentID)
- * @method static bkashSuccess($pay_success)
- * @method static refreshToken($refresh_token)
- * @method static searchTransaction($trxID)
+ * @method static cPayment($request_data_json, $account=1)
+ * @method static executePayment($paymentID, $account=1)
+ * @method static queryPayment($paymentID, $account=1)
+ * @method static refreshToken($refresh_token, $account=1)
+ * @method static searchTransaction($trxID, $account=1)
  * @method static success($message,$transId)
  * @method static cancel($message,$transId=null)
  * @method static failure($message,$transId=null)
diff --git a/src/Payment/TBPayment.php b/src/Payment/TBPayment.php
index a2b3915..7159770 100644
--- a/src/Payment/TBPayment.php
+++ b/src/Payment/TBPayment.php
@@ -8,39 +8,52 @@ class TBPayment extends TBBaseApi
 {
     use Helpers;
 
-    public function cPayment($request_data_json)
+    public function cPayment($request_data_json, $account=1)
     {
-        $response = $this->getToken();
+        if ($account == 1) $account=null;
+        else $account="_$account";
+        $response = $this->getToken($account);
         if ($response['id_token']){
-            return $this->getUrl('/checkout/create','POST',$request_data_json);
+            return $this->getUrl('/checkout/create','POST',$request_data_json, $account);
         }
         return redirect()->back()->with('error-alert2', 'Invalid request try again');
-
     }
-    public function executePayment($paymentID)
+    public function executePayment($paymentID, $account=1)
     {
+        if ($account == 1) $account=null;
+        else $account="_$account";
+
         $token = session()->get('bkash_token');
-        if (!$token) $this->getToken();
-        return $this->getUrl2($paymentID,'/checkout/execute');
+        if (!$token) $this->getToken($account);
+        return $this->getUrl2($paymentID,'/checkout/execute', $account);
     }
-    public function queryPayment($paymentID)
+    public function queryPayment($paymentID, $account=1)
     {
+        if ($account == 1) $account=null;
+        else $account="_$account";
+
         $token = session()->get('bkash_token');
-        if (!$token) $this->getToken();
-        return $this->getUrl2($paymentID,'/checkout/payment/status');
+        if (!$token) $this->getToken($account);
+        return $this->getUrl2($paymentID,'/checkout/payment/status', $account);
     }
-    public function refreshToken($refresh_token)
+    public function refreshToken($refresh_token, $account=1)
     {
-        return $this->getUrlToken("/checkout/token/refresh",$refresh_token);
+        if ($account == 1) $account=null;
+        else $account="_$account";
+
+        return $this->getUrlToken("/checkout/token/refresh",$refresh_token, $account);
     }
-    public function searchTransaction($trxID)
+    public function searchTransaction($trxID, $account=1)
     {
+        if ($account == 1) $account=null;
+        else $account="_$account";
+
         $post_token = array(
             'trxID' => $trxID
         );
         $posttoken = json_encode($post_token);
-        $this->getToken();
-        return $this->getUrl3("/checkout/general/searchTransaction",$posttoken);
+        $this->getToken($account);
+        return $this->getUrl3("/checkout/general/searchTransaction",$posttoken, $account);
     }
     public function success($message,$transId)
     {
diff --git a/src/Payment/TBRefund.php b/src/Payment/TBRefund.php
index bc3fa27..0605ccd 100644
--- a/src/Payment/TBRefund.php
+++ b/src/Payment/TBRefund.php
@@ -7,8 +7,11 @@ class TBRefund extends TBBaseApi
 {
     use Helpers;
 
-    public function refund($paymentID,$trxID,$amount,$reason='refined amount',$sku='abc')
+    public function refund($paymentID,$trxID,$amount,$reason='refined amount',$sku='abc', $account=1)
     {
+        if ($account == 1) $account=null;
+        else $account="_$account";
+
         $post_token = array(
             'paymentID' => $paymentID,
             'amount' => $amount,
@@ -17,18 +20,21 @@ public function refund($paymentID,$trxID,$amount,$reason='refined amount',$sku='
             'sku' => $sku,
         );
         $posttoken = json_encode($post_token);
-        $this->getToken();
-        return $this->getUrl3("/checkout/payment/refund",$posttoken);
+        $this->getToken($account);
+        return $this->getUrl3("/checkout/payment/refund",$posttoken, $account);
     }
 
-    public function refundStatus($paymentID,$trxID)
+    public function refundStatus($paymentID,$trxID, $account=1)
     {
+        if ($account == 1) $account=null;
+        else $account="_$account";
+
         $post_token = array(
             'paymentID' => $paymentID,
             'trxID' => $trxID,
         );
         $posttoken = json_encode($post_token);
-        $this->getToken();
-        return $this->getUrl3("/checkout/payment/refund",$posttoken);
+        $this->getToken($account);
+        return $this->getUrl3("/checkout/payment/refund",$posttoken, $account);
     }
 }
diff --git a/src/Traits/Helpers.php b/src/Traits/Helpers.php
index e49985f..65a6660 100644
--- a/src/Traits/Helpers.php
+++ b/src/Traits/Helpers.php
@@ -13,21 +13,21 @@ public function getIp()
         return request()->ip();
     }
 
-    protected function getUrlToken($url,$refresh_token=null)
+    protected function getUrlToken($url,$refresh_token=null, $account=null)
     {
         session()->forget('bkash_token');
         session()->forget('bkash_token_type');
         session()->forget('bkash_refresh_token');
         $post_token = array(
-            'app_key' => config("bkash.bkash_app_key"),
-            'app_secret' => config("bkash.bkash_app_secret"),
+            'app_key' => config("bkash.bkash_app_key$account"),
+            'app_secret' => config("bkash.bkash_app_secret$account"),
             'refresh_token' => $refresh_token,
         );
         $url = curl_init($this->baseUrl.$url);
         $post_token = json_encode($post_token);
 
-        $username = config("bkash.bkash_username");
-        $password = config("bkash.bkash_password");
+        $username = config("bkash.bkash_username$account");
+        $password = config("bkash.bkash_password$account");
 
         $header = array(
             'Content-Type:application/json',
@@ -55,10 +55,10 @@ protected function getUrlToken($url,$refresh_token=null)
         return $response;
     }
 
-    protected function getUrl($url, $method, $data=null)
+    protected function getUrl($url, $method, $data=null, $account=null)
     {
         $token = session()->get('bkash_token');
-        $app_key = config("bkash.bkash_app_key");
+        $app_key = config("bkash.bkash_app_key$account");
 
         $url = curl_init($this->baseUrl.$url);
         $header = array(
@@ -78,13 +78,13 @@ protected function getUrl($url, $method, $data=null)
         return json_decode($resultdata, true);
     }
 
-    protected function getUrl2($paymentID,$url){
+    protected function getUrl2($paymentID, $url, $account=null){
         $post_token = array(
             'paymentID' => $paymentID
         );
         $url = curl_init($this->baseUrl.$url);
         $posttoken = json_encode($post_token);
-        $app_key = config("bkash.bkash_app_key");
+        $app_key = config("bkash.bkash_app_key$account");
         $header = array(
             'Content-Type:application/json',
             'Authorization:' . session()->get('bkash_token'),
@@ -102,9 +102,9 @@ protected function getUrl2($paymentID,$url){
         return json_decode($resultdata, true);
     }
 
-    protected function getUrl3($url,$data){
+    protected function getUrl3($url,$data, $account=null){
         $url = curl_init($this->baseUrl.$url);
-        $app_key = config("bkash.bkash_app_key");
+        $app_key = config("bkash.bkash_app_key$account");
         $header = array(
             'Content-Type:application/json',
             'Authorization:' . session()->get('bkash_token'),
@@ -122,8 +122,8 @@ protected function getUrl3($url,$data){
         return json_decode($resultdata, true);
     }
 
-    protected function getToken()
+    protected function getToken($account=null)
     {
-        return $this->getUrlToken('/checkout/token/grant');
+        return $this->getUrlToken('/checkout/token/grant',null, $account);
     }
 }