Bad service

I am having a night mare with DSTV , so far I have spoken to 3 consultant and my issues is yet to be resolved. The first consultant said I must reboot the decoder, because 161 was not showing, after the process we did with her, all the other channels which was showing was now having problems, I asked her to direct me to her supervisor and what she did was to put me through to the switch board, i then had to start my problem from scratch. after explaining she said it was a connectivity issue and i need to get the technician to sort it out. I asked her how came must it be me who needed to pay for the service to resolve the channels which was working and are now not working after the instruction of their consultant. She said that is the procedure and if I am not happy, I can write to them. I wrote the email and they returned to me after 3 days, this time the consultant said i should take the decoder to the multichoice centre to get it checked. i informed him that i haven’t watched the channel in a month and he only said they can only credit me with R100. to my surprise they have deducted the whole amount without the credit they spoke about. As it is now, I am still having the same problem and nothing is happening. They have send me their survey links which I rated low, but they haven’t responded up until now