NO NO NO SERVICE and CANCELLING CONTRACT

I am shocked and disgusted in the service received from Vodacom. I have been a client for about 10 years not once missed a payment nothing. I have been paying around R2500 to R3500 every month not complaining nothing. My phone Broke and i asked if i could get an early upgrade only being 3 months away. THe 1st person i called she said that the authorisation was given and i was to be called the next day.NOTHING HAPPENED. 2 I called again asking and explaining my story, Then i get told i cant get an early upgrade but if i go into the store they sure that i can get it there. I go to Tygervalley Vodacom only to be told that i need to do it online and i dont qualify for a new Phone. The next day ofcourse i call them again asking whats going on and having enough of being told a different story i informed them that i would like to cancel my contract with immediate effect..... I was asked why which i explained the guy on he phone asked me to please hold on his going to see what he can do. AGAIN i get told that they will be giving a replacement phone and that someone will call me in 5 minutes. Its been 4 days no one has called me. All their calls are recorded so they can go and listen to it. But from today i will reverse every single debit order from Vodacom as their recordings will have proof as i have been promised twice with no response. ANd they do not dare blame COVID for this as it has nothing to do other than poor poor service.