Paytm Mobile Solutions — cashback not credited for applied blast40

Address:

11005

Dear team,
Please be inform you that i have booked a trolly bag with order no. [protected] dated 26 jul, 2017 3:59 pm and applied blast40. However, still i did not received cash back in my paytm wallet.

I have contacted paytm customer care and write many times but nobody taken action in this issue.

It is requesting to you please look into it and credit cash back in my paytm wallet.