The most common reason for this is that the card issuer has put a limit on your account. They might have done this because they think you are spending too much money, or because they think you are spending too much money and not paying it back. If you don’t want to be declined, call your card company and ask them to take off the limit.

This is most likely happening because the card has been flagged as suspicious. This can happen for a number of reasons, such as:-The card’s account has been compromised and the thief is using it to make purchases online.-The cardholder has exceeded their credit limit and is unable to make any payments.-The cardholder has an outstanding balance on their account and cannot afford to pay it off in full.