Reliance Trends — not getting cashback voucher

Address:

Jalandhar, Punjab, 144003

I was purchase a recap trouser worth 1600+ on 14th november and salesman told me the paytm payment mode offer in which it contain customer got 1500 cashback voucher after 48 hours if he pay 1500+ worth price bill through paytm. So that i paid my bill through paytm with
Payment reference number # [protected]*2018 ididn't get any sort of voucher in my paytm. It is very disappointing. This was my first experience at reliance trend.