Medlife — refund pending

My medlife registered mobile number is [protected].
I made an order on 13/10/2018 patient name manika nag (Order id #or2779st-002a).
After receiving my medicine i found that 1 medicine (Olmezest 40) is not the same medicine which i ordered for. Then on 16/10/2018 i made a return request for 3 strips olmezest 40 by calling customer service.
On 23/10/2018, a pick up man (Sumit, mob number [protected]) picked those 3 strips of olmezest 40 from my home..
Still i haven't received my refund amount.

I did payment through paytm wallet (Paytm number [protected]) for that order.
. I called severel times to the customer care of medlife.. Every times they assured me that my money will b refunded in the paytm wallet within 2 days. But still didn't..
Please help..