Vodacom consultants please stop confusing us

I added a new line recently and the person who assisted me told me that there is a connection fee of a sum of +_450 in total I said when must I pay that amount she told as soon as you got money to pay it I then went to nearby atm and draw money and went back to vodashop that is in Ermelo and told them that I want to pay connection fee the only ask me the number that I am using for the contract I gave them and pay after that I was told that everything is fine concerning connection fee of my new contract few days down the line Vodacom send me a message notifying me that I am owing them the connection fee I called costumer care to inquire the lady that assisted me til me that I am liable to pay that money or I must go back to Ermelo to resolve the issue I then ask her dose the payment reflects on system she said yes and ask her why can I over pay my account with so much money after that she fail to answer me that then now I am 780km away from Ermelo I ask her as she was sending me back that who will cover the travel cost for something that they fail to notice on the system that the Piaf amount was for new lines connection fee and I asked before I pay the amount