Curtis International RCA Television Warranty is useless! Etobicoke Ontario

I bought a 55" RCA TV Model RTRU5527-W in November 2017. Six months later it made a very loud sparking noise, smelled burning and stopped working. The tv would turn on but there was absolutely no picture. RCA has a year warranty on their products with the receipt, which I have because I purchased it on Walmart.com.

I called Curtis International that day and they took my information and told me someone would send me an email withing 48 hours, that didn't happen, so I called again.So again I had to give her all my information and she said that the head office would email me within 48 hours.

I received the email and responded immediately with the information they required and waited 2 days for a response, no response came. So I called again. I was told to wait 5-10 days for a response.
A week goes by and nothing. I call again. All they can tell me is that it's in high priority and I should hear from someone soon.
There is a warranty on this product that Curtis does not want to honor. I have been told there is no way to talk to the customer service department that I'm emailing and that I have to wait. I do not believe they are honoring their warranty.