Bad service

On the 13/10/2020 I was call by a rude lady Called Nelisiwe from the collection department with regards to my accounts. I was trying to explain to her that the information that she's providing me with is incorrect and that my contract came to end in September and I cancelled it, but she was insisting that she's right and raising her voice at me which led her to put down the phone on my ear without even understanding what I was trying to explain. I'm very apuled and disappointed about the service I got from vodacom after I've been with them for so many years