Asus — breakage of glass

Address: Visakhapatnam, Andhra Pradesh

hi this is jaswanth, i bought this asus zenfone 5 on august., they said that it consists of gorrila glass 3.yesterday my phone fell from a height of knee and it broke into pieces.if it was a gorrila glass how would it break from such a small height, it even scattered into pieces..when i contacted service centre they are saying it costs 5000, i bought the mobile for 10000,