Paying a credit card twice can turn a routine bill into a brief financial mystery. The account may show a zero balance, then suddenly display a negative number, even though nothing went wrong with the card itself.
That negative number usually means the card issuer owes you money. An accidental second payment does not normally become a penalty, disappear, or damage your credit. Instead, the extra payment generally becomes a credit on the account that can cover future purchases or, in many cases, come back to you as a refund.
