Colive — Security Deposit not received, unauthorized scheme enrollment

Website:

www.colive.com

I was a tenant at Colive Golden Square 306 in Chennai from May 16, 2022 to June 16, 2022.
I had made all outstanding payments before moving out and as per the terms I expected to receive my security deposit by 15th of July.
However, instead of receiving the deposit, I received an email stating that my deposit has been retained under their "Double Your Deposit" (DYD) scheme. Without my consent, my deposit has been retained by Colive for a scheme I never opted for.
They mention in the email that I have to fill out a 'cancellation form' to opt-out of the DYD plan and my deposit will be refunded to my bank account. And of course, they give no information about this form like where it can be found, accessed, filled and submitted.
There has to be some violation of laws by Colive because they did not inform me about this DYD policy and I did not opt for it either.