Kent RO Purifier — No proper service

Address:

Aurangabad, Maharashtra

I have purchased KENT WATER PURIFIER (GRAND+) on 10/10/2012 from the dealer k.s.enterprises aurangabad.and my purifier stopped working
on 25/05/2013.and i called the dealer for the service.but despite of coming two times the problem isn't been solve.and now they are not responding the call.and if they receive the call they are giving useless answers.HOPE FOR A POSITIVE RESPONSE.THANK YOU