Complaint

I don't know what else to do now with multichoice, a consultant contacted me on the 24th April to offer me a new decoder I accepted the offer and they delivered the very same day I was impressed. However they delivered and incorrect product and the very same day I phoned to query and I was sent from pillar to post until I was advised to cancel the product and it was done on the 28th of April. I stayed 2 weeks without watching the channels that I paid for, the channels were sorted after 2 weeks of calling and no one knew what to do .They confirmed the contract is cancelled and I should'nt have any issues going forward , they have arranged for collection of the decoder .I phoned 2 weeks ago to query why the decoder is not collected and I was promised they will collect urgently,till today the decoder is not collected and my channels are cancelled . I am beyond livid at this appauling service I have received from multichoice since the 24th of April to date. I have been using my airtime to call and I'm sure I have called more than 15 times already ,I even drove to a multichoice centre as advised by one of the consultants and I was told they cant assist ,I have requested to speak to team leaders and managers still no assistance. I want to cancel all my services with this company