[Resolved]  Lenovo Laptop 62q — hard disk space not up to the claimed configured

i bought a Lenovo laptop Model No n-7757 Part No- R3N[protected]
Serial No- EB07631877, 62Q on June 2008 from a shop called Datamation in Guwahati, Assam.
Though before bying i was told that the laptop is having configuration of 1GB RAM and 160 GB HDD but after i bought it and bought it home i found that the total herd disk memory i was given is 130GB.
Given the fact that the Operating System takesup 2GB of memory space and the disk partitioning takes maximum upto 1GB space, i should have recieved my memory having atleast 155GB.
but i jst have 129GB as my memory space.
SO i think either i have been cheated on my Memory or they partioned it wrongly which now they refuse to acknowledge.
so in this regard i wud seriously wish to lodge a sincere complain owing the fact that my laptop cost me Rs.41500 to be exact.
Kindly take up the matter at the earliest.
My contact number is [protected]