If you have an outstanding advance and enter the advance portal, you may see a page similar to below:
This page shows when your outstanding advances have not recouped enough for you to take another advance. The minimum advance is $250, so when your account recoups to this point, you will see the advance request flow again.
You may see that the difference between Original Advance Limit and Outstanding Advances is greater than $250. This is because the difference between the two values must be enough for a $250 advance plus the fee - $280 total.