What kind of card is it?

A virtual card… I paid for my initial hobby plan and I tried topping up my card and it failed then my plan went back to the trial plan when my tokens are not finished yet

What kind of virtual card?

A virtual dollar card

A prepaid card

Certain prepaid debit cards may be blocked on our platform for fraud & abuse prevention reasons. Unfortunately we cannot help with this -- I recommend using a credit card instead.