The last time (Jan 2022) I requested a registration bump I was sent this:
If you have not already, try emailing renewals with your request. They should assign it to Embarcadero EU, who should then contact you - try and get you to renew - then do the bump as requested. Or so I am told. I ended up not following through with my request as I copied the slip files from another machine, and renamed my machine to that machine (which I was retiring), and got my copies of D2007 and D10.1 working that way. This old SO question still applies, as far as I know:
https://stackoverflow.com/questions/34451575/reinstalling-windows-without-re-registering-delphi