Poor customer care

I called the customer care line today (13/04/2018) and I spoke to a guy named Lunga. I have a problem with some unauthorised debit orders that are going through my account. Now as I was giving the guy my ID number, he decided to pretend like he can't hear me. He gave the three warnings ("if you don't respond I'll be forced to terminate the call") which were quicker than the speed of light. After that he hung up on me. I need help and I need this guy to be dealt with...