Paytm Mobile Solutions — Cashback coupon code not working

Address:	Gautam Buddh Nagar, Uttar Pradesh, 400101
Website:	www.paytm.com

I have done shopping on paytm with having offer of cash back coupon code for electricity bill payment. After around a month when I didn't received the code i sent them mail for the code. They send me some incorrect code which was not working. It was showing that the code has been already used. On further complaint they send me different code. Again the same problem. That code was incorrect code. I am following up with their customer care team since past one month but getting no proper support.They are now saying that you don't meet terms n conditions without proper reason that which term and conditions they are talking about. They are not even properly replying on call telling that you will get response in 72 hours. This is going for a month and still i am not getting any proper response.

I have all logs detail in my mail with all proper screenshots for this issue and all improper mails from paytm.