So I finally managed to get it off today, actually they told me to send it by email as nobody is at the office and it's work from home. They said to send the docs as well by post. So that's what I did. The CAA said it would take 35 working days for my medical stuff to be transferred. Similar to you, I sent my TRI/TRE stuff but they have expired, I just hope they keep some record of them if I need to renew. I wrote them on the form anyway, even though they're not current. Let's hope we all get some sort of licence back, To be fair, once they replied to the first email after a month, they were quick to reply thereafter.