@Lindsay
i have not had any email correspondence – not even an acknowledgement – i sent an email to upgrade team on the 9th too with proof of travel. i know they have received the extra docs as i have got confirmation from Royal Mail.
However i did ring today (13th) in the morning, the Lady asked for my RM Tracking number and said she would link the docs to the application. Also Said she would send the Liverpool office (which is where my app is) an email or something as a matter of urgency to try to get someone to dig the documents out to speed up the process. i must say it has not filled me with much confidence though as she did say that they usually take 3-4 weeks to be seen.
i was also told that i would get a call from withheld number and NOT to Miss it