Letsbuy
Wrong product sent

I had submitted an order - Order no: LSB-387797. I ordered for one of the items as Motorola Fire XT, instead i was shipped a motorola Fire (lower priced phone). I have already paid the amount via credit card. I wanted to gift it to a friend who is traveling out of India and am stuck with this crappy phone. I called up the helpdesk and they told me to scan picture of the phone delivered and send back to them. No replies since then!!! Now I can't even gift the phone as it is too late to get the phone i have ordered. I want my cash back :(