No response to Licence Cancelation

I recently bought a TV which I had to return due to it being faulty. I do not own any other TV and I am not planning on buying another TV. I have sent ********** numerous emails and called them, but they keep telling me they are not receiving my emails and they do not want to provide me with an alternative email address to send my affidavit and confirmation letter from Game stating that that I returned the TV. I am really disappointed with you SABC, I paid for the licence and I do not expect a refund even though I will not be using a TV, but you cannot even cancel my licence.