Wrong information given and not treated fairly

About 2 months ago I app**** for a DSTV Explora and was told that I will receive it that Friday wich was in October and was also told that it was including installation. I did not receive the decoder that time or even a call telling me why.So Monday the 7th December I received a call asking me if Im still interested in the explora and I said yes, so the lady told me that Im on the R849 plan wich do not include installation but she will excalate my account and I will receive it on Friday and that the accounts department will phone me. So the delivering company phoned me Tuesday and ask for delivering address so I phoned the accounts department myself to make sure Im on the R899 plan wich includes installation, before I receive the decoder. They told me that my account is excalated to R899 and I should not contact any installer. So the installation company phoned me telling me that they cant install it because Im on the R849 plan. This morning I phoned again and was told that Im on the R849 plan and must install it myself or pay R1200 for installation, bcause it cant be excalated to R899, wich is unfair because I wouldnt have taken the decoder if that was the case.<br>