In case you haven't bought BGX yet: Buy with Bitcoin
If you're not able to buy with Bitcoin, BGX have a lot of resellers. https://forum.bgx.gg/forum/57-reseller/
There u can buy it with things like Paypal, Creditcards and more. I cant recommend you resellers because it would be unfair for other resellers.
Keep in mind: If you buy keys from 'unofficial resellers' (ppl who are not listed in the Forum / have the reseller Role in Discord) you can get banned.