Bookmyoffer.com — not working properly

Address:

Bangalore, Karnataka

i bought power bank MI 10400mah but it's not working properly i have to return this item, am trying to contact customer service department they couldn't pick the call also.i uploaded photo twice in this link but still you are telling something missing. Please take back my parcel and return my amount in the same addres.i contact delivery boy also he told u have to contact customer support but no reply from your side.