Horrible service from Vodacom

I currently have R54 airtime loaded, but I am unable to make outgoing calls. I receive a voice prompt stating that I have insufficient airtime and that I qualify for an airtime advance. I have contacted the call centre twice: On the first call, the agent advised me to restart my phone after manually selecting Vodacom SA in the connection settings. She mentioned she would call me back, but never did. I then visited a Vodacom store, where I was informed that a ticket had been logged and the issue would be resolved within 24 hours. It has now been more than 48 hours, and the issue remains unresolved. I called again, and the agent transferred me to a department that was not relevant to my query. I would appreciate urgent assistance in resolving this matter, as I am unable to use my airtime for basic services. Name:Serai Potsanyane number in question ***