Microsoft — No response in replacement or refund for my mobile microsoft lumia 535 dual sim

Address:	02022
Website:	www.microsoft.com/en-in/mobile

Job sheet Number (From Mobility solutions):12374
Reference NUmber(From Microsoft Mobile Company):[protected]

I have been wandering for 2 and half months for refund/Replacement of my new complaint mobile phone(Microsoft Lumia 535 Dual sim) which is under warranty.
Mobility solutions is a worst service centre I ever seen before. They always say lame excuses, people shout at them most of the day due to irritating services they provide.My Mobile's complaint is that I can't use my mobile's touch properly while charging.They gave me jobsheet which says that my mobile needs touch replacement. They destroyed my mike of my phone and i also shouted and got fixed.But still touch problem is not fixed.
Mobility solutions always say that the spare part for touchscreen is not received.So I directly Mailed Microsoft Mobile support and technical team through thier official website. Here also after 2 and above weeks i have been waiting. No response from both service centre or Microsoft company.Kindly file a complaint for getting a Full refund/ Replacement of this complaint phone.