We do not need to upgrade by tomorrow Friday since we're now showing 0MB used. is my understanding correct?

2- In doing testing we've exceeded the 100 MB. As expected we received a JotForm quota message asking to upgrade to get more space and saying that forms would be disabled on the following day if we did not upgrade. As you suggested in your message below I deleted those submissions to create more space. The account 'status' then showed 0MB of upload space used. No follow-up notifications were sent to us flowing the deletion of the submission. Based on you input and my understanding, we do not ned to upgrade by tomorrow Friday since we're now showing 0MB used.
Q2: is my understanding correct?

Your assumption is correct, you do no need to upgrade since you freed up space by deleting submissions. You currently have used 29 our of 100 submissions for this month.

If you have another question, please open a new thread, we will be glad to assist you.