However you may have better luck with some smaller banks or credit unions that have not officially banned the practice of buying cryptocurrencies with a credit card. This may go without saying but if you arent already a firm believer in crypto a crypto credit card wont win you over. 10 Ways To Buy Bitcoin With Credit Debit Card Buy Bitcoin Bitcoin Debit Card The good thing about investing your credit card rewards in cryptocurrency is that if you do lose money it may not sting as badly as it would if you were to lose a portion of your hard-earned. Should you buy crypto with credit card . Should You Buy. Theres very little a crypto card can do that a vanilla rewards card cant do aside from letting you spend the crypto you already have. These cards are similar to traditional rewards cards but instead of earning cash back or airline miles you earn crypto or you can redeem your rewards points for them. This problem is the same one youll face when shopping on an e-commerce site.