Colive — Cancellation form not received.

Address: Colive Glory, Green Glen Layout

I stayed in colive Glory, Green Glen Layout from July till 29th August. I got the mail regarding the security deposit that they are keeping my money under some dyd scheme which I never opted for. I want to cancel that and want my money back but they have not sent and cancellation form despite mention g in the mail.. Pls help me to get my money back.