Hindware Benelave — leakage in benelave angle cock

my name is shabbir, i had given a complain regarding leakage in angle cock on 12-05-15, complain no: MJ144555 within 48 hours they told that ur problem will be solved, today is 19-05-15 almost 7 days have passed no person has come to even to check what is the problem, what type of after sales service u have, for such a big brand like Hindware