incompitant technition you people need to go back and do some product training

I bought a dstv decoder for R599 at Pep stores which comes with a free installation voucher ,I then went to multichoice to pay and activate the decoder only to find out that it wasn't working,the consultant changed it and gave me a new 1 ,usually the decoder is attached with a sticker at the bottom which is the voucher,so apparently when they changed the decoder the voucher from Pep was left in the damaged decoder which was left at multichoice ,so I called the installation guys and they came and installed the dstv,a day later the owner of the installation company calls and tells me that he didn't get the voucher and i must do something about it cause they will end up coming to remove what they had installed,so I went to multichoice and explained my situation and after a while they came back and apologized for the inconvience and was told to go home they will take care of the situation,today I wake up with a missed call and a message from the installation guys telling me that I must go to pep and fix this ,which clearly means multichoice did nothing to help me instead made the problem even worse,why wasn't I told from word go that I must take the decoder to pep stores return they stupid decoder and now I'm given a run around...multichoice staff are incompitant, who is going to pay for my transport fees cause now I'm being given a run around and have to go to pep again I'm not working. ......I'm very disappointed with multichoice and their circus that they are running