DSTV - Extremely Poor Customer Service

I cannot believe the poor customer service from DSTV call center. I have been calling for 3 days now, asking to speak to a team leader, and I have been told every day that they are in a meeting and will call me back. Day 3, I am still being told the same thing, and no one has bothered to call back. No one is able to sort out my queries after I have been billed incorrectly.