I took Henry's advice and was able to get in contact with the duty manage at EsD. He said they had 4 or 5 phones handed in that had been sent to Bristol's lost and found. So given the current evidence my resolve remains strong. Thanks for the heads up I only pray this time next week I'll be reunited with my dissertation.
As for the painkillers, they're proving a little harder to track down as nobody has seen hide nor hair of them.
A 1 of 2 would be nice though.