DSTV upgrade fiasco

At the beginning of this month, I called the DSTV call centre to change the date of my debit order. This done , the person I spoke to offered me an upgrade to the latest decoder which included a price fix for 2 years. I agreed and a few days later, an installer arrived, installed the new dish and associated hardware. He then showed me a package from a courier company, which had my name on. Inside was the new decoder and a letter on DSTV letterhead, also with my name on. He could not activate the decoder. when he enquired, he was told that that decoder had been assigned to another customer. He left with the decoder and returned 2 days later, same decoder in hand, which he again could not activate. He again left, and I heard nothing further. I tried calling DSTV to find the contact number and was told they did not know. I called DSTV a number of time without resolution to the problem. Today I called to cancel the upgrade request. The lady assisted me and subsequently, part of the package does not work, including the PVR function. I have now been informed that I have to pay R938 to restore functions that were discontinued by DSTV. I hope this is read by someone at DSTV who does more than answer questions from customers on all day.