Rediff Shop & Gift — Product not working

Address:	Khordha, Odisha, 751009
Website:	shopping.rediff.com

Respected sir,
I have ordered a mi power bank 10400mah vide transaction no.24819035 in rediff shop & gift. But when i opened the box and tried to charge, its not getting charge and its completely damaged and not working. I have already mail to rediff twice but did not get any reply from their side. I tried to contact their customer service but did not get service from their side. They don't pick up my call anymore.
Kindly exchange/refund my product immediately orelse necessary steps may kindly be taken against them.
Thank you,
With regards,
Smruti dash
Address-odisha secretariat, gate no.5, back side of odisha secretariat, unit-5, bhubaneswar (Odisha), pin-751009
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