Were you hoping to pay ahead on your credit card? It is important to understand that a credit card payment has a due date at the end of each month. What this means to you is any payment made within a month will be credited in that month.
For example: The current balance on your credit card is $500. You make a payment of $400 on January 15. The payment will be applied to the January billing cycle. If you make another payment of $100 on January 25, that payment will also be applied to the January billing cycle. To make a payment for the February billing cycle, you would need to wait until February 1.