Theft Description

I was delivering food and I was and I left my bike at the bottom of the stairs as it had no lift and I had to go the 3rd floor so I saw someone trying to enter the block then as soon as I was about to the give the food to the customer I see this man driving my bike I ran down the stairs  as fast as I could got downstairs he was gone it was a white man aged 20-30 who took the bike he switched my bike for his bike which was run  down it  was stolen at the end of Murray grove in Islington/Hackney near hoxton If you can find it I’ll give a reward of 50 pound.