Blackberry 9700
Seller fraud

I was buy blackberry mobile 9700 bold item via ebay from standard enterprises pune india my item no 220614701663 and paisapay ID 26918841467 but this item is faulty and seller is fraud i so time call but no recived my phone when he recived tail me send this item to our head office and after 2 days same item (faulty) return to me i calling but no recived my phone i mail but no answer please help me how can i clear my big i decide after this i never buy any product by ebay

my email [email protected]