I received an email that we've reached our limit? How does this work?

It seems like you have reached your upload limit. Free accounts are limited to 100.00 MB of upload space. Your forms will be disabled on Monday at 12pm EST. Since we understand that it can be an inconvenience to have your forms stop working because you reached your upload limit, we'd like to remind you that you can upgrade and your forms will be running smoothly again.

Hello,

Uploads limit is fixed for account: Understanding-Your-Account-Usage-and-Limits

You can delete submissions containing file uploads to free up space. I see that you have probably already deleted some submissions with uploads. 

Prior to removing submissions, please make sure that you have downloaded the data: 

How-to-Download-Form-Submissions-as-Excel-CSV-PDF

How-to-Download-the-Submission-Files

Also, you can upgrade your account to extend the limits: How-to-Upgrade-My-Account

Let us know if you need more help.