Pureit / Hindustan Unilever — Poor service of service center at lucknow

Address:

Lucknow, Uttar Pradesh, 226012

Dear sir,
I have buy pureit morvella ro+uv water purifier from reliance digital store, lucknow on 23.07.2015.
Now three led's are glowing red continuously (change sf + change gkk1 + change gkk2).
I have called technician mr. punit who told that my equipment is out of warranty, since in his office it shown date of purchase on 01.07.2015.
After this type of reply of service technician i have called mr. ankush, who said that in my system it show 01.07.2015, so i cant do anything and you buy this item from reliance digital so complaint on reliance digital.

Sir, i have physical proof of bill but they ignore it, and says that you have to pay according to us, just like blackmailing.
Sir it requested that kindly rectify the issue as earlier as possible.