POOR SERVICE AND DISHONORED QUOTE

I called to cancel my contract with Vodacom and was offered a very good deal, so i agreed to to sign up again only to realise in the new month that all that was offered and I accepted was again not honored. Now I am being charged 25% more, with not even the same products. Calls are recorded for quality purposes, seems to be a farce, I have since spoken to many agents in various departments over the past few days, for a few hours and there has been no resolution. I was asked my matter, call transferred and cut off a few times, until now no one has called back to fix this. I have been a contract customer of for over 20 years, this is what I get for loyalty .