bad service from Vodacom

I requested for an upgrade on my number and the package that was given to me is not compatible for my device it has been a mission to have the upgrade cancelled as I'm supposed to wait for 30 days before that can be done, I don't understand why a simple reversal can't be done and will also be expected to pay for services that I'm not even using. Calling the customer care has not been pleasant as you get transferred all over the place no 1 is willing to assist to help.