For people who live in USA there is always coinbase option that you can get crypto with credit card but do not forget that your bank will ask for that payment eventually whereas if your coins fall (which recently they have been) it won't be capable of paying easily. You will be both down on your crypto investment and you will be forced by the bank to pay that. On all other banks most of the times banks allow you to withdraw from you credit card just like a payment to some shop.

You withdraw cash from an ATM and you get that money put it in some other account and buy crypto with that, a bit more challenging and more effort put into it compared to coinbase option but until coinbase opens up in your country or someone else allows that option that is the only way.