How do you repair a brand new tv?? I want my money back.

I bought a JVC TV in December, and within a week I reported a fault. It was only picked up after I complained about the non-pick-up, in January. They picked it up and it went away 2 weeks with no word, no update, no feedback. I have now received a message via Twitter that JVC apparently REPAIRED the tv and delivered it back to me. THERE IS NO SUCH!! The tv was picked up and never returned. I want my money back.