[Resolved]  Lenovo Thinkpad — Warranty not updated in server

I had purchased Lenovo thinkpad R61i from Megahertz System pvt ltd lamington road Mumbai on 19 feb 2009.
on the invoice it is written that my system has 3 year warranty, but when i faced some problem and called lenovo for supprot , they say that warranty has expired on 10/9/2009.
I have sent scanned copy to Lenovo and retailer both.
Nobody is helping .
I am suffering from 21 dec2009.
please do help me.