Vodacom upgraded the wrong number.

So I am due for an upgrade there are 3 phones on one person's name at vodacom. The one number is meant to be upgraded. This was conducted via vodacoms online service. A week layer the phone and smar****ch that were due with the upgraded contract arrive. But guess what. The number that was upgraded was the wrong one. Not just that the number upgraded was upgraded a year ago. How the hell...? After being sent from one department to another for a week, i get told that the phone and watch need to be collected in 3 to 7 days. Then they will roll back the upgrade... and i need to upgrade again. And in the meantime? Well who knows how long this will take. Maybe its just better to cancel the contracts with Vodacom.