HiSense Customer Support

I won't lie - I really have been patience with HiSense support. They collected my TV which was under extended warranty and sent to me a Collection for Credit Job Card. I have been following up again and again... excuse after excuse, they are very creative in getting rid of me.

But today I have have had enough and realized that every bad review they are getting is legit. Their customer support is the worst it is as if they do not care about ratings or any repercussions. I have been emailing and calling over and over again but now as soon as I give them my Ticket number they put me on hold for 20mins and cut off my call.

Please advise me with how can I escalate this matter because now I am being ****** off my TV. I am now willing to take this matter beyond.