Paytm — Cashback not received

Address:

Visakhapatnam, Andhra Pradesh

There is a mock bank exam which is conducted by The hindu newspaper and careerlauncher website . We have to pay rs 99 to appear the exam, In return there is a offer from paytm of rs 99 cashback. They have sent me a mail which contains promo code to add 99 rs to paytm wallet. When i was applying the code it is showing the code has been used. I have not even used the code and there is no balance redeemed in my paytm wallet. Fix the issue as soon as possible . my phone number is [protected]