Bookmyoffer.com — Power bank backup

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Agra, Uttar Pradesh

I bought a power bank on 12/07/15. It is not giving the battery back up properly. My mobile battery capacity is 1800 mAH. It can't charge my mobile even one time fully. It's charging my mobile upto 60% after that again I have to charge that power bank. Tell me how return this product and refund of money. By Rajesh ([protected])