Your Fitness Club — a gym called yfc is doing fraud and is not refunding money. the local police isnt helping

Address:

Mumbai City, Maharashtra, 400008

I have been running behind this gym called yfc for my refund. These people were allowing members to use steroids in their premises in dockyard and on complaint, they didn't take any action. On asking refund they have shut the gym over night and are denying refund. I have tried complaining in the local police station but in vain. Kindly help me please. The amount is 10, 000rs. They are not even scared of the police and have kept all sources of contact shut.