Replace damaged goods

On the 16/02/2016 my wife and i went to N1 City Multichoice to have her account transferred to my name and the lady activated the explorer that was delivered. On the 18/02/2016 a installer came to my house to install the explorer. After the installation we found that the box office was not working. As the installer finished at about 12am. we phoned *** they said we have to wait 48hrs to fix outomatically.. 20/02/2016 in the afternoon the problem was not fixed. after phoning a few times i was eventually helped by someone who knew and she said she will escalate the problem as she checked everything that could cause the problem.. Monday 22/02/2016 i got no response from Multichoice and went in to N1 City office and spoke to a lady Thobeka then Natasha who refused that a proper working explorer be delivered to my house or have my contract cancelled as it was not even 7 days old. After leaving N1 city i phoned *** again first spoke to DPP who dropped the call after ten min again spoke to Nelisiwe who said she will refer the complaint to Jabulile Tlhapane. Multichoce delivered a broken explorer to my house. i want a working explorer delivered to my house or it cancelled.