Prevented from approving because of Prolific accounting error

I ran a study. It took a bit longer than expected, so I accepted the Prolific suggestion of increasing the pay. Then I went to approve the last complete submission. Prolific says it cannot because it would cost too much. However, this is a nutty error. I have more than a thousand dollars in my account. I bet the problem is that it set the total budget when i submitted the job, and increased that budget when i increased the pay, but somehow my final approval is blocked because Prolific is applying an old limit. This is a bug and should be fixed. Prolific shouldn’t prevent a scientist with an appropriate balance from paying for completed studies.