Reliance Digital — reconnect power bank 20000mah

Address:

Pune, Maharashtra, 411048

I purchased a reconnect powerbank 20000mah from relinace digital, amanora mall, pune, maharashtra on 29 july 2018 cin : l52100mh2012plc231654, till no 9, memo no. 0086066. I kept it for charging as it was showing 67% percent battery. After 6 hrs of charging with no output charge, means no device connected to it, it showed on 74% and it did not charge to 100% even after 8 hrs. I made sure electricity was there and tried again. But same issue, powerbank is faulty and does not charge. Why is reliance selling faulty powerbank. Kindly look into the matter urgently and compensate me for the loss by providing refund.