How long do I need to wait?

Usually, it takes two billing cycles to get it reflected. But it depends on various factors to see the reflection in your credit score. It also depends on the fact when your lender is reporting it. However, if you don't see reflection after this time, dispute it and get it corrected.

You need to manage your credit cards,payments properly to see the reflection. Stay within your credit limit. Pay the bill in full and within time. And of course repay the existing due bills to see the result.

You have to wait for a 30 days to 45 days to see a change in the new balance reported on your credit report. If you made the payment almost at the end of the billing cycle, then you can see that your credit report has been updated quickly.