Why i cant pay with a Visa Debit Card?
I have changed My debit card with a visa card and the payments is not available. How can I solve this trouble?
Payment methods that you can use with your Apple ID - Apple Support
Change or remove your Apple ID payment information - Apple Support
A debit card will need to have enough balance, to be accepted, obviously.
If the card is brand new, then ask you financial institution for confirmation that this card will work for such online payments, and if there are any limits. Some cards need authorization/activation for such use.
Some users have solved a declined but valid card, by setting method to ‘None’, then signing out, signing in again, and entering the card information again.