Godrej Properties — Cheating, committed offer not yet given and denied

Address: Pune

I have booked 2 bhk in Godrej premises through their authorised channel partner Square yard and they had committed some gift voucher along with cash back amount but after sometime the sales executive from square yard had left the company now since then I am keep following with both Godrej and Square yard but didn't get ans satisfactory response.Even earlier in between our interaction with Square yard, one manager had offered us for gift voucher in exchange of cashback along with other gift voucher but now no one is responding, it's cheating from Godrej as well as from square yard.