My little writing on credit card applications
You should look into "snowballing" your debt, if you have hit the maximum on the lowest interest card. You focus on the credit card that has the lowest balance and pay it off first (while making sure you pay the minimum payments on your other cards), regardless of which one has the highest interest rate. Do not reduce the amount of your payment each month, even as that balance becomes smaller and smaller. After that credit card is paid off, focus on the credit card with the next lowest balance. Maintain the same payments as you made on the first card.