If you overpay your credit card by more than $1 and request a refund, your credit card company must send you a refund within seven business days of getting your written request. The refund may come in the form of a bank account deposit, cash, a check or a money order. While you may be able to exceed your credit limit when you have a negative balance, it doesn’t increase your overall credit limit. You don’t have to repay a negative balance—it represents money that your credit card company owes you. Your credit limit is typically set by the issuer when you apply for your credit card. Just use your credit card like you normally do, and your credit card company will apply the account
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