Not sure if this helps anyone or not, but sharing some details from my process here just in case -
First CoPR Expired: 18-04-2020
Received Re-Medical Request: 05-01-2021
Completed Re-Medical: 24-02-2021
Received Authorization Letter (to travel): 19-03-2021
Soon after that, flights were banned from my country again so couldn't travel using that letter.
Authorization Letter Expired: 18-05-2021
Sent loads of messages to them since then through the Web Form. No Updates at all. No ultimatum email either.
For another random attempt, sent a Web Form on 12-11-2021. This time included my re-medical report and receipt as an attachment as well.
Application status changed: 15-11-2021
Passport Request: 01-12-2021
I don't know if sending the medical reports+receipt through the Web Form actually helped or not, but didn't hurt either. Maybe the above helps someone else.