Nestaway Technologies Private Limited - Nestaway Refund not received

I rented a flat from nestaway in March **** and agreed to pay **** rent every month and ** days notice period and also paid * months rent as a security deposit . The agreement valid for ** months. I left the flat on October and during that time nestaway sent notification that they increased notice period to ** days and it is applicable for old tenants as well. This is just a move to take all my security deposits. This is happened for many users and nestaway team is not responding. If you check Google play reviews you can easily know this company is a big cheater. You can rent flat easily but the time you want to leave they will show their real face.