MTN DOES NOT KNOW HOW TO DECATIVATE VOICEMAIL WHICH WE HAVE NEVER REQUESTED FOR

For the past month I have been struggling to deactivate my voicemail facility. called these consultants and they are ****** useless. I never requested for this facility. Help desk consultants never seem to know what they are doing except to treat you like a ******** when you call them with their 10 thousand verification questions. Their attitudes are totally unacceptable. So many regrets as to why I renewed my contract. Their staff are not adequately trained yet we are paying customers who have to endure this nonsense. So fed up with MTN'S POOR SERVICE