[Resolved]  Book My Offer — My mobile power bank yet not returned

Address: 464001

Website: www.bookmyoffer.com

I was order a power bank by online site bookmyoffer which is of samsung in rs.648 and which delivery is successful but there is a issue the power bank is faulty mean it is not give backup it is not charge a phone more than half and hour so i want to replace or return it
Please help me to return or replace the power bank from site bookmyoffer
And i hope your team will help me quickly
And this power bank was order by my father's e-mail (Namdev. [protected]@yahoo.com) from mungaoli ditrict ashoknagar and delivery is in vidisha where i am studying in samrat ashok technological institute and delivery address is sumati nivas sherpura vidisha (M. P.) and my phone no. Is [protected]
I hope you will help me