BAD CUSTOMER EXPERIENCE

I have been struggling with the TV Box that I have bought,it has been rebooting every 5 seconds for the past week now it is off. I sent an email to their customer service on last week,they did not respond, I made follow up again om sunday they phoned yesterday telling me that my query has been escalated to a guy named Paul. I am still waiting for Paul to assist me,I sent an email to him yesterday no response,today again still no response,I phoned back the number they used to call me there was no answer. They do not have customer service, for me to struggle like this with no communication from them is so annoying.