Unsatisfied customer poor service worst experience ever!

I bought 58"Hisense from Hirsh 2 months ago I never opened the TV until now to find out that TV is not working vertical lines..I called the store they promised to call technician to come and check if the TV is working .I waited no communication from the store until again I called they sent me a screen shot from Hisense that they reject the enquiry I suppose to report immediately the day of purchase...My question is I never purchased from Hisense how's it my duty to deal with Hisense since never purchased the TV from them but from Hirsch's ???...This is going against what is promised by Hirsch's to me the customer poor bad service ever ,worst experience ever! I'm taking further steps (CPA) .