Jaycee Homes — Not getting money refund

Address:	401107
Website:	jayceehomes

I had booked a flat of this buider at Bhagthani Rio project, Mira Road, Mumbai with a downpayment of 6.5lacs on 12th october 2012.In their agreement, it is mentioned that, if there is any delay in starting the project, they will return it with an interest of 15%.Now, after 4 years, I contacted their office to get back my money, they are saying that afer another 15 months only the amount will be returned. Kindly help me to get back my money at the earliest...