Bookmyoffer.com — They given me duplicate proadect

Respected Sir/Madam, I have a purchased Item by Bookmyoffer.com and received Dated: 29.08.2015 likemi power 10400 mAH Power Bank, Order Number [protected], Quantity-01, Total Amount Rs.698/-, but above item is not good, not working it is used item, it also not in good condition.not charging. I have raised an issue, but they are not received my phone calls [protected] Please taken action and to order for Bookmyoffer.com fellows taken back the item and refund my valuable money as above for kindly. Iam waiting for your quick response. Thanking you, [protected]@gmail.com