No support with Voicemail problem!

Pathetic Customer Care and Contact centre. My voicemail has not been working for more than 3 weeks. When someone phones they do not get an option of leaving a voice message. When I go into my setting it confirms that all is OK. I then phone and email customer care. They then log a complaint. A week later I go through the same process, each time they state that I will get feedback within 5 to 7 working days. However, not once have I received any feedback and each time I have to go through the whole process of explaining that my voice does not work , nobody can leave a voice message!!!! I am sure it is not rocket science it is just than nobody cares.... I will now gladly pay R7400 to cancel my contract so I can port my number to Vodacom.