Bad Service at Multichoice Alberton outlet

I have had a problem with my DSTV decoder for the last 3 weeks. We took it to an electronics place and was told that it had lightning damage. A friend gave me a decoder that she received from a friend and I asked her to get an change of ownership form completed. Last week I contacted the call centre and was told that I can do the change of ownership at my nearest outlet which is the one in Alberton. Hi-lite Audio and Visual. I then went there on Friday and I was asked to have a certified copy of my ID and that I should be back by 3pm otherwise they can't assist me. I then left and had a copy made and certified. I then went back to the shop just to be told that the paperwork that I had was incorrect. I was extremely upset as the first guy could have told me this the first time I was there. I then phoned the call centre again and asked the lady what am I to do. She explained the process and I then went and had an affidavit made. On returning to the shop on Saturday I was told that the decoder I want to use isn't picked up on their system yet the first guy that assisted me picked it up the Friday. The lady that assisted me was very rude and snotty towards me.