Bad service from DSTV

We have the full bouquet. In our bedroom we have extra view. Tuesday night i switched on the tv and found the error E143-3. Phoned them but couldn't fix the problem. Was told i. 24 hrs someone would phone back. Wasnt done. Phoned again Wednesday night. Same story. I phoned again Thursday morning and was told pricelock story and the lady said reboot both machines when you get home. Then a lady phoned me and said she would phone at 5 30. Nothing. I phoned again smd was told technical dept would phone in 10 minutes. Still nothing. Im sooo upset and frustrated at the pathetic service im receiving. Paying for something that is not working. Im fed up. What now.....