Frustrated Customer

Telkom is the worst service provider one can have.They have a bunch of imcompetent people working for them.They only thing they good to do is to confirm your personal details. Everytime u call them u have to start explaining ur problem all over again but still no joy regarding my billing.They have being billing me R500 extra for the last 2 months. But I have requested for them to set my spend limit to R10 so I don't understand how I can be billed R500 more over and above my normal Bill. I have being requesting for the managers to listen to voice recordings wen I gave instructions for spend limit to be fixed at R10 for the last 2-3 weeks . Was told that a manager by the name of Andy will listen to it and call me back in 24 hrs but it's gone weeks . Still no joy.