One Mobikwik Systems Private Limited — Fraud as regret to give cash back as per committed offer.

Address:	Raigad, Maharashtra, 410206
Website:	www.mobikwik.com

Hi. I have purchased Lumia 535 for getting cashback from mobikwik and now using Mobikwik on my Lumia 535 and doing recharge for 300rs using coupon code LUM300. Every time i use it, and coupon code applies successfully, The change code in December & January.but this time, its showing "Invalid coupon " Then they said that they rights to change the policy know their policy has change but before purchase of the they mention this type of policy us. In policy the mention the offer is valid till 15 November 2016. then how can they change policy in between Can you please help me out? but as per offer they was suppose to give cash back up to December 2016 or min. 12 months.