Livpure — Taken Money and Not providing service

I have reviewed Service Maintenance Contract for 3 years and paid INR 12000 for it, now when I am raising any service request to resolve my RO issue, they are closing the complain without resolving the issue and the number they provide doesn’t answer my phone and it’s been 10-15 days my RO is not working these LIVPURE people doesn’t care about it.
I don’t know where to escalate now, these people are just doing fraud now. I am from Hardoi (UP), my registered number is [protected].