I'm not sure who does this. I recently found out I can pay the balance on my Capital One cards with a debit card. I use my Coinbase Debit card with crypto cash back to pay off my balances. So, I get cashback from Capital One, then cashback from Coinbase. Basically, I am getting 2-7%, average 5% cashback depending on the rotation of the crypto rewards and doubles has a crypto investment.

I know crypto is volatility though I made $1,400 cashback with my Coinbase card and $300 with my Capital One Cards since July 2021, which I think is pretty good. It would have been more if I knew this earlier, found this out in March 2022.

Example: Captial One SavorOne: 243.55 (3%) 18.08 (3%) 13.97 (3%) 29 (1%) = $304.60 Cashback - $8.56

Coinbase Payment $304.60 (4%) Crypto Cashback - $12.18

Total Cashback - $20.74 :)

Add Payment Account - Debit Card

UPDATE: COIN BASE UPDATED THEIR TERMS NO LONGER WORKS