Reliance Trends — Cheated and not given 4500 worth coupons

I have done 5000 purchase today and they told to give me 4500 worth of coupons and acted like they are keeping in bag, but didn't keep and done the proud and cheating with me. Due to this type of cheap mentality, Trends reduced its image. I need that 4500 worth coupons or I need that much of amount.