Bad service

I bought a Hisense smart-tv on the 2nd of May 2015. On the 15th of June 2015 I hooked it up with my WiFi and tried to updated its software. After rebooting, my TV could not work anymore. It was logged in for repairs to a service/repair agent called Mike. My TV was sent back to me the next day claiming that it was fixed whereas it was not. I soon discovered that Mike is ***********. I requested a better repair service and was taken pillar to post. I called all Hisense contacts I could find from the Internet but no one could help. Apparently I realised that hisense does not have the software of the product they are selling and moreover, they do not know how to repair their own products. I'm stuck with a brand new Hisense dump tv which is not working...