His story does not make sense they took 60 pounds and a cheap watch but left his phone and this happend in the foyer so no cctv cameras picked it up. Plus her add is still active, normally when these prossies are robbing punters they do it and then leave the area and profile swap.
money they can spend immediately on drugs or booze
a phone they can't, and is traceable
as for thieves moving, theres a series of reports in Loughborough at the moment which shows the exact opposite: four different robberies logged
and anyway, we don't know that they were linked to the girl: they may just have been parasites who knew she was in the building and were intercepting her customers. Less likely I accept, but possible