Call gets dropped after holding on for 15 minutes

So after spending 15 minutes of my lunch hour holding and waiting patiently to speak to a call centre agent, I finally get through to Mondozo. She only has enough time to mention her name before the line goes dead. I wait a few more minutes, hoping that by now she would have had my number on her screen and be kind enough to call back, but nothing.<br> <br> Vodacom, dear Vodacom, please call me so I can ask the question I phoned for in the first place.