TTK Prestige — Very bad after sale service

Address:

Patna

I am trying to get my cooktop under warranty repaired for 2 months but the service center guy is unable to do so. He comes after more than 10 days after repeated calling and goes back without repairing. Now he has stopped talking to us. I am tired enough to throw this garbage in dustbin. Please suggest what to do. Customer care guys are also not helping only giving false hopes.
[protected]