If you receive an e-mail from the IRS saying your renewal is late and asking for documentation of your CE credits, the IRS probably lost one of your prior renewal applications. I filed my renewal timely on 5/6/21 and received the e-mail on 5/17/21. It said my renewal was late (but didn't say which one) and requested documentation for my 2018-2020 CE credits showing the IRS program numbers. The expanded listing from your PTIN account works, but not all of my credits are listed there. A co-worker received a similar e-mail the same day from a different person at the IRS saying her 2018 renewal was late. She sent a copy of the receipt of her 2018 renewal and that took care of the problem. The IRS person told her half of the ERPA renewals didn't go through. I sent a copy of my 2018 receipt and received a response that their records indicated I didn't renew in 2015 (I did), but they have my CE credits now and I'm good through 9/30/2024.
So, if you get one of these e-mails, find your receipt from the prior renewal and send that first. You may not have to send documentation of your CE credits. In my case that would have been interesting because ASPPA and NTSA didn't report my CE credits to my PTIN account and they don't send certificates with the IRS program number. I contacted ASPPA and they are working on getting documentation for me.