Vodacom Staff do not have access to their own systems!!!!!!

I have been calling for weeks to cancel contracts and every time I the agent tells me they do not have access to M2 and will get someone to call me back, which never happens. I have also been calling their retentions department to cancel an open order on my account so that I can do an upgrade at a store and again I get the same answer, agent cant help me because they do not have access to M2. Again I get promised someone will call me back and again NOTHING!!! So it is OK with Vodacom to ignore me wanting to cancel contracts so that they can keep billing me. If this does not get resolved now I will be taking this a lot further.