Theft Description

My bike was stolen from the secure bike store at Rockingham House, Newcastle Street, Sheffield at 1:30pm on 6/12/2019. I reported it being missing to staff at my halls who have CCTV cameras above the exit to the bike store corridor, but the images were only viewed 6 weeks later and confirmed a man wearing a cap had broken into the store, cut the lock and could be seen on camera walking away with the bike. Sadly due to the delay in locating CCTV evidence, the images had all been deleted from the system. These images could not therefore be handed to the police. But the bike has still not been found. Any help retrieving it would be massively helpful, as I am a student and it was my only means of transport. Thank you very much.