Dell Inspiron N4010 Laptop — warranty issue

Address:

Jammu, Jammu and Kashmir

sir,
my dell laptop is under complete cover warranty.it got some keyboard issue as one of its key popped out.i contacted dell and they told me to send pictures of the part and assured me of replacingthe keyboard.but later they called me and told me that it was an usage issue and they cant even service that part.i would like to register a complaint that everything that we buy is for usage purpose and the warranty even covers accidental protection.so dell is unnecessary harassing me and i am not getting the service i paid for.i want justice to be done sir.