Shocking Customer Service

I walk in to Vodacom outlet to report an account issue. This young girl barely greeted and looked at me. After she gave me first line response my my complex issue, she became argumentantive and condescending. Then sent me to call the call centre on my own phone. She is seating at counter 9 today eastpoint shop. So angry and worse the call centre call cut off. Now I am stuck with false arrears against my name and I still don't know why and what to do to clear this issue