Pureit / Hindustan Unilever — No response from service person till now

Address:

Bangalore, Karnataka, 560095

Raised a request on 19th jan - 2017 to replace ro membrane for my purit marvela ro. i was assured that service person will call me next day i. e. 20th jan-2017. however till 12:00 noon when i didn, t get any call i again called to the customer care... they again assured that it will be serviced today i. e. 20jan - 2017and i will receive a call. i waited till 6:00 pm but got no call or neither any service person called me. so again i called customer care, this time they assured that they are raising immediate followup ticket and i will receive a call in next 2 hr from the service person. by this time it is 11:30 pm and i have not received any call. there is not a single drop of drinking water in the house. i have a kid who is suffering from severe gastro condition. however this is the world class service i have got from a global brand. feeling like unilever is a cheater.