WORST SERVICE

Worst service ever!!! We bought a Hisense TV. Two weeks ago when you turn it on the red light goes on but nothing on the screen goes on. I called the Customer care number, sent the proof of payment and the questions they asked regarding all the information of the TV. On Friday last week they told me they are sending someone to come and fix it. At 16:30 I called them and they said that the managers didnt give permission for traveling. I kept on calling for a week and yesterday they told me they are coming out today. Now it is 16:40 I called them three times. All three times they told me to hold on and put the phone down in my ear. I called again and got the same excuse that the managers did not yet give permission for traveling. How long do we have to struggle like this? We have warranty ons these products and still have to beg and beg for a service. I think in the last week I may have called them 20 times and still NO feedback. If I call them I hold on for 15 minutes at a time and don't get any answers. I would never buy a Hisense product again.