Dstv bad customer service

So my dstv has been giving me problems for the past 3 days giving me an e16 then jumps to a e46 On THE other Dstv they keep sending commands....to clear but the way they have been acting it's like they are all *******ed. I have been calling eventually this one chap says I must take it to my nearest installer . I get to Dstv in Edenvale and they say all they can do is change the decoder because it's still under warranty . I ask them to change it and they say they don't have stock I must go to Dstv head branch in randburg ... I ask the lady what time does it close she says 7pm ... I drive to randburg and get there at 5:00pm I'm am then told that its closed and that it closes at 5 pm and they have shut off all the systems.. and they cant help me ... now I'm beyond mad so I call Dstv and explain my issue the lady says she's gona call her supervisor... she puts me on hold for 1h:30 then hangs up . I go home reconnect and call Dstv again I explain whats happening and the lady directs me to help and says she is Gona check settings on her side ... and puts me on hold for 1h ... I'm now feed up with there poor after service delivery that they speak so highly about Dstv needs to improve there customer service...its **** really is ... I'm. Still not helped and sitting with a problem .