No response to a simple request for a spare part

I purchased a 65\ 3D Smart TV 6 months ago through a retailer in Midrand Gauteng. The remote control for this TV stopped working and with the functionality of these Smart TV's it is virtually impossible to operate the TV. I tried calling the Hisense switchboard *** and they refer you to *** which is permanently busy. I tried mailing every single mail address I could find on the Net and got a response from some sales person in Cape Town who forward me to another person that I never heard from again. This has been going on from the beginning of September 2015. This is a simple request