MTN Data Issues

I spent over 20 minutes on the line with MTN Customer Service yesterday speaking with 3 different people to follow up on an issue with my recurring data contract. After all this time I was promised a call back from a supervisor by close of business, no call was received. I trust after reading this, Management will call me to resolve the issue. I have been a client for a very long time with four lines at MTN and definitely feel the customer service experience should be far better from such a large company. Surely non delivery of a paid for service constitutes as breach of contract from MTN ? Can I move to Telkom now ? Let's see...hopefully someone at MTN cares about customer service.