Yepme — 25% cashback not received

I had shop a pyajama from yepme against order no. 31036544 on 10 may 2016. I had made payment through paytm, wallet order no. [protected] for rs 361/- which was placed to me. But as paytm claimed that 25% cashback will be given on order amt. Same has not been received till date. Pl remit the same.
Sanjeev bhatnagar.