Vodacom - Most disloyal, unfaithful, disrespectful and full of lies Service Provider

I am a loyal Vodacom customer for more than 15 years and I plan to change that soon. Here is my story.....I was due for an upgrade in September 2019. I was looking a deal that will suitable for me requirements and have contacted Vodacom Upgrades many times and they advised me of the upgrades however it was too much for me. Often, the agents will give advise when to call back, as they might have deals for me. Eventually, MTN offered me a deal that suited me. I contacted Vodacom Rententions and spoke to a gentleman who managed offer me a close deal to MTN but not the same. My loyalty to Vodacom allowed me to stay and I said that he must call me the next day so that I can sleep on it. I did not receive any calls for the past two days from him, as I decided to go with this deal. Eventually, I called Vodacom Rententions again and ask to speak to him. The agent said that he sent him en email, to contact me but he did not for the next two days again. Furious and unhappy, I called Vodacom Retentions with ending my relationship with Vodacom. The agent said that she understood and have managed to calm me down and convinced me to stay. Her deal was so overwhelming that I immediately gave her the go ahead to upgrade. Plus I was saving some bucks. This was done on the 22/11/2019 and guess what.....do date nothing. I received information from RAM Couriers about the device but no information about the actual upgrade in the Vodacom system I have been calling with frustration almost everyday, as the agents would say that they will call back or their team leader will but no one called me. I have been promised many times that I will be called and to no avail, no calls. Today is the 03/12/2019 and I want cancel with whatever dealings that I have with Vodacom. I have called today to Vodacom Retentions for the last time and gave an ultimatum to let me know of what is going to be done and need feedback today. The call took place around 3pm and guess what, promises, and promises and promises but no action. I am sick, tired, frustrated and a furious customer who wants this relationship with Vodacom. You are full of lies and deceit. Always making promises but cannot keep them. If I had to rate Vodacom out of ten, I would go into the minus figures and that is how angry and upset I am with you. Very disappointed customer and wants out. Please help me with the cancellation, as your Vodacom Retentions team are useless and cannot help me. If you want to know my frustrations, extract the recorded calls from me to Vodacom on this number and you will know why I feel this way........