Asus — regarding warranty

Address: Ambala, Haryana

sir, firstly i asked one question .why sir alwyas coustomer cheted by company and delar. i purchase mini laptop and delar give a bill and compny say on your bill serial no, sign and stamp of delar, ict no of delar .all things are avilable on bill but company refuse to accept warrenty. why sir, means that coustomer is lair or foolish .can you solve this problem.and why you provide a permission on this type of company in india.