Furious customer

I'm so FRUSTRATED with all the guys I've spoken to since last week Thursday 04/11/2021. I've been trying to upgrade my contract and all of them whom I've spoken to has just messed up my upgrade. When I call abck to confirm if the previous person has done the correct thing, they either say no there isn't such a package or no they didn't do it as per what they've advised you of. They ALSO don't do things according to the POPIA Act, they are not being upfront at all, as long as they can just get a sale. I truly hate dishonesty!! The lady I spoke to yesterday said my upgrade will be effective from 01 December 2021, but rhwy are already adding some charges to my account?? Should that only be effective from end December. Can someone more informed of your products please call me back. PS They've even messes up my husbands upgrade!!