Voltas 1 5 stars inverter split Ac - Repair service not honored under warranty

I had purchased VOLTAS *.* TON *S ***V vertis emerald inverter split AC on *th April,****. Product is under warranty. It had stopped working and I raised complaint on **th June,**** and they promised that issue will be resolved within **-** hours. But no one contacted me afterwards. I only had started following up with their customer support every time they promised it will be done by end of the day. Also they provided * numbers stating it is their area manager number. After calling almost ** time that person picked up the call and said repair will not be done. exact words were 'nahi hoga kaam'. I feel it is purposefully not done because product is under warranty.