Hisense poor service

I've been receiving the poorest service from this brand. I've tried to reach out so many times. Their Twitter account said they couldn't assist and gave me a call center number that doesn't go through. I ended up going to Makro Woodmead where I bought the tv. The in-store Hisense consultant gentleman said he will contact me on Monday to send a technician and I still haven't heard anything from him. Their Twitter account has even stopped responding to my messages. Regret of buying this brand is slowly creeping in.