Bad Service

My Hisense tv died on Monday evening, I called Hifi Corp (Promenade) to log a ticket on Tuesday morning. I sent everything incl the Serial number to ***, I specify to her that this is the only tv I have at home I will really appreciate if they can speed up the process. I've been calling and received the same message that she is waiting for the reference and there's nothing she can do without it. I went to the store Friday and was the same story I took Hisense's number. I called Hisense today and they requested a ticket number, the store suppose to get when they send an email to them. I called Hifi requesting the same and I spoke to another lady that works with Bulelwa and she told that they must first get a reference before they can get the ticket number. She told me Tumi Kubo is the one to generate it and Tumi told them that she/he will generate it only today before c.o.b. I called Hisense looking for Tumi and I was given his/her number *** I tried to call but it just rings or engaged. I'm really ****ed with this and this is the 2nd tv the first one also died. It was struggle as well to get help I even went and dump the 1st tv on their store since I was not getting any joy. And this time around I want to change the brand it's obvious there's a problem with Hisense.