Solution if you don’t have a bank account and want to buy Bitcoin with your credit card: buy a $500 visa gift card first and then use that gift card on the exchange.

I’ve done this before and sometimes particulate stores disallow you from purchasing the gift card with a credit card, but a majority have not cared. You will be charged a small fee for the purchase of the card but if you’re dead set on buying crypto with a credit card, this will work for you.