Clients not being able to fill out form - It says over quota

Hello, we have had Kinder parents contacting us saying they can't access the form to fill out next years kinder enrollment form.   I think they said it had reached it's quota.  I have cleaned out the submissions inbox but parents are still unable to access it.  Are you able to give me some advice on how to fix the problem?

Thanks, Lauren

Hello Lauren - Apologies for the inconvenience.

I recalculated your submissions/uploads count on our end and reactivated your account. Your forms should display properly again.

Let us know if you need further assistance.