Pureit / Hindustan Unilever — Worst customer service

Address:	Pune, Maharashtra, 411057
Website:	Www.pureit.com

I have been trying to get the sediment filter fixed from past 1 week, but no one from customer care center is even bothered. I have to call and take updates every 2-3 hrs. Every time i call they give me a new reason/ explanation for delay.
They had committed service within 24 hrs and now it has been more than 24*7 hrs. They don't have proper channel for escalation. Highly disappointed with the service.