terrible service and no feedback from Vodacom management

I requested a slightly earlier upgrade (by a few days) as Vodacom had a really good deal for black friday, I spoke to an agent on Friday 24/11 and she said its not possible, I spoke to another agent the next day who was quite helpful and said she would escalate it might be possible due to my history with vodacom and that I will get feedback by monday (27/11), I did not receive feedback and called on 28/11 and spoke to a supposed manager by the name of Jamie who said he will follow up and provide feedback, to date I have not heard from him, I called again on Friday 01/12 and spoke to another supposed manager by the name of Basheer who was supposed to give me feedback by 5pm the same day, it is Monday 04/12 and have still not heard anything, I would expect Vodacom being the giant they are in the industry to deliver much better service but I guess being a giant in the industry has made them arrogant and not care about the consumer, I called today and spoke to Kiano who tried his best but said it wont be possible for vodacom to assist me and offered alternative deals which come nowhere close to the deal I was made to lose out on