No help at all!

I just spoke to Nozipho Nzimande on the Telkom chat. I just have queries regarding my account and I'm struggling to understand where they got my last invoice amount. This person was no help at all and keep interrupting me and I still have no answer as she was very rude and disconnected after I asked another question. Why wasn't I allowed to ask questions regarding my own account? Is this maybe because of incorrect calculations? I can only wonder. Very very disapointed.