Vodacom Mistreatment

I called vodacom for number Swap, was told it was successful only to find its not, called back, and another consultant told me it's successful while it's not, still saying the number doesn't exist, called third time, still getting same answer, 4th consultant told me to have to wait, I called again same respond and that my matter will be attended technically, on that time they have already charged me 152 for number swap, charging for what reason while it's not successful? Now I'm behind work related and own loss on my own personal way of income,