Zero star rating for Vodacom - pathetic service

If I could give a zero star rating instead of a 1 star, I would. I have been struggling with Vodacom for 3 months with no end of the issue in sight. I upgraded my contract in January and everything has been a mess ever since. I phone them continuously to follow up and ask that they resolve the issue - which they have admitted is on their side - but it's going into month 3 and no resolution. When I initially contacted Vodacom in January to inform them of the issue, I was told that there was nothing they can do until my "bill" became an "invoice" which would only be the following month (i.e. Feb). What kind of service provider tells you that you have to wait a month before they will start investigating a problem (on their side)?! It's beyond ridiculous that they wouldn't want to look into the problem straight away but instead tell you to wait a month and then phone again. I can't even count the number of times I have contacted them to resolve the issue. Not once have the consultants actually been able to assist. They keep telling me that the issue is on the "online side" because I upgraded my contract online but they can't get hold of the people there. How many times do they expect a customer to phone them to resolve an issue that they've admitted is on their side? What is actually going on at this company? It's shocking! The worst part is that they are increasing their fees in April because apparently they are delivering a good service. If this is their level of service then they should be reducing their fees, not increasing it.