Useless Vodacom accounts department

Very poor service to start with. They have been disconnecting my phone for 2 months. They allocated the money paid to the wrong account and keep switching off my phone. I have been trying to reactivate my phone but they keep telling me they can't hrlp me. I can't do anything on my phone unless they reactivate and switch it back on. My account is fully paid but their accounts department made a mistake. I need my phone on because this was not my fault and they need to put my phone on and sort out their mistake without me suffering from it.