Vodacom should be ashamed

Vodacom should be ashamed - I have been a vodacom contract holder for over 20 years and was called and upgraded my contract telephonically last week. RAM has tried to deliver the handset twice but the invoice has the wrong ID number on it. Vodacom customer care tell me that it must be a system problem but they can't sort it out. How could they have done the upgrade when I provided my ID number but it didn't match? The people at the call centre are unhelpful, rude and obstructive. They made it clear that they are only too happy if I cancel my contract.