Debit card not working

"Your bank couldn't authorize this payment method" and "Check the info you entered. It doesn't match the info for this card." are the two messages I get constantly when trying to enter my card info. I have checked with
the bank numerous times, and they have confirmed the information I am entering is Correct, and that my account is authorized for online billing and transactions. I'm not sure what is happening and I just want to buy and play video games during the quarantine.

:)