How will I be notified that I need more than a starter account?

I doubt that we will receive more than 10 JotForm vendor payments (using PayPal) prior to our festival event Sept 3-4, but it's possible.  We don't want to pay for a Bronze JotForm account unless we must.  How will we know when it's time to pay for Bronze?  We don't want any potential vendor to be refused because we've reached out total of 10 free payments.

Hello CFSF,

Please note that when you are reaching close to your submission limit, you will a warning email. Once submission limit of your account is reached, we again send you an warning email with a time frame when your forms will be disabled. If you upgrade your account within that time limit, your forms will not be disabled. You just need to keep an eye on submission count of your account and the warning email which we sent.

Hope this answers your query.

Do get back to us if you have any questions.

Thank you!