Vodacom unreachable

For the third (maybe even fourth) year in a row, my husband has been kicked off the Vodacom network. I called Vodacom last week on his behalf - just to be told that they won't be able to assist me and they have to speak to him. (HOW are they going to contact him if he can't receive calls???????) Magically, his number was able to make and receive calls again. Just to be kicked off again this morning. I can't call them on his behalf, he can't call them from his cell on the 082135 number given... AND we can't dial the number from a landline either!!! (Number does not exist). I have checked online and cannot find any other number that he can use from a landline. He is losing business while Vodacom does nothing about the fact that this happens periodically - and no, the handset cannot be blamed: he has had THREE different handsets since this started happening.