Since Revolut card is a debit card which by some reasons in some cases it has some issues in the merchants I would like to let here the next Idea:
- Why not have the concept of Amount Lock.
- The Locked Amount, e.g. 2000 Euros would be the max credit amount to use during the month
- The next month the user would top-up or have a rule to top-up from any available Vault with funds
I believe that this would solve many issues regarding credit card.