Vodacom always a disappointment

As always Vodacom disappoints, I get notified that I'm due for an upgrade and I log into My Vodacom and it has a nice banner stating I am due for an upgrade click here to browse deals. Then Vodacom hits, I click on the banner and then I get a message stating sorry you can only upgrade on 15 October, this message is shown to me on 20 October. I then finally manage to speak to a person on their online chat who confirms that I'm due for an upgrade but I will need to phone the call centre. There is no way I'm doing that because it's always a nightmare and there are supposed to be some better deals when you do it online.

Every single time Vodacom disappoints and the sad part is I have four contracts with them and every time it's a nightmare if I need to do anything.