Dell L501 Xps Laptop — system does not work properly

Address:

Jaipur, Rajasthan

i bought my laptop in month of December 2010. the very next day its hard disk crashed and the system was at service center for more than two weeks. after a few days its USB ports were not working. hence motherboard was replaced. after a few months again its hard disk was having problem and it was replaced.
from december to april within 5 months i went through three replacements. i asked them to replace the system but they say that they don't have this provision.