HP (Hewlett Packard) — Device not working properly

Address:

Ambala, Haryana, 133001

I have purchase a 32 gb pendrive (Hp v216b) from amazon.In in feb 2015, now its nor working properlly i want to replace the pendrive.
2 year of manufacturer warranty, is mentioned in the advertisement.
Only for 2 month it work properlly after 2 months its stop working properlly.
Item model no. Of pandrive is mm-uspdhp-114.
Date of delivery is 2nd feb 2015.
I m facing many problems using this device.
Hp is a trusted brand if it provide such kind of stuff then i will never go for the hp products, and also i will never suggest to any one to purchase any product of hp.