telkom team leader failing call back since last we

Telkom team leader failing call backs since last week. I put through a simple request however they could not follow through constantly passing the blame and today I ended up calling them again after I was promised that I would for sure receive a call back my faith is lost with telkom mobile. As they never follow through on call backs. I work in the same industry and failed call back are serious but they so care free about this I feel my previous network provider was much better I'm regretting leaving that network. Customer service are pathetic and not looking out for the customer and at the end of the day customers are the reason the company to keep on moving forward. So my question is why not make your customers feel that way and why not set a customer as a high piriorty ????