Vodacom deletes my number because of a system error

My wife's phone number got randomly deleted on Monday afternoon from the Vodacom network. The number is still on and works 100%. She uses her phone everyday to phone and send messages, but when she went into the vodapay app yesterday to load airtime, she discovered that her number does not show on the app anymore and gets told that the number does not exist. We phoned vodacom customer care which told us that the reason for the number being deleted is being of it being inactive. Now she loads airtime and uses the phone on a daily basis, so that excuse for her number being deleted is not valid. I mean, we got told to do a sim swop which will sort the issue out, but how do you do a sim swop if the number is completely deleted of the vodacom network? We decided to go to the Tyger Valley Vodacom shop this morning, they told us there is nothing they can do and must get a new sim and number. What the hell? Is there then no one with higher authority that can fix what they messed up? It is a simple system error and should be fixed be re-activating her number even thou it still works 100%. What if this was a business number? Imagine all the business that will be lost because of Vodacom. This is unacceptable and someone should be able to fix this. I WILL TAKE THIS FURTHER!