I PURCHASED THE NOKIA 1203 black MOBILE FROM GIRIDIH DISTRICT, JHARKHAND STATE IN MONTH OCTOBER, 31, 2010. ITS IMEI NUMBER IS 356054033679470 ITEM:002J927. IT GOT DEFUNCT 4-5 MONTHS AGO.SENT DHANBAD SERVICE CENTRE THROUGH YOUR NOKIA DEALER AT HARINA COLONY WITH VALID CASH MEMO. FIRST TIME SET IS RETURNED WITH A CERTIFICATE THAT SERVICE IS DONE AND SET WORKING BUT THE PROBLEM WAS AS IT WAS. SET WAS THEN RESENT TO SERVICE CENTRE . TILL DATE YOUR MOBILE SELLER OF HARINA COLONY DID NOT RETURNED THE ABOVE MOBILE SAYING YOUR SET IS NOT MENT TILL NOW. GUIDE ME WHAT TO DO?