Samsung — samsung galaxy s4

Address:

Mumbai City, Maharashtra

Hi,
I purchased a samsung galazy s4 in july 2013. The phone fell down from my hand yesterday and there was a crack in the so called "gorilla glass" which you guys claim has passed the hammer test. After that my hone stopped working. Since its just a 4 month old phone it should have been repaired under warrenty but you guys refuse to cover it. Firstly how did the "gorilla class" break by just a fall and secondly shouldnt it be covered?Please explain how di the gorilla glass 3 break???????