Sim Swop Issues

Vodacom is absolutely pathetic. They will gladly process an upgrade on your account, with funds outstanding on the account (they neglected to inform me) about this. The phone finally arrives after many days. I then need to perform a sim swop. This is now not possible due to funds not paid. Fair enough, i make the payment and am told to call many hours later where i am ensured the funds will be allocated and i can do the sim swop. I phone an hour later to be safe only to be told i haven't paid once again. I am sitting with a new phone, that cannot be used and payment has been made!!! Vodacom is so quick to process an upgrade that will make them money, but then not speed up the process of ensuring you can actually use your phone once you get it!!!! PATHETIC!