Bad service

This medical aid decided to terminate my membership without my consent. I went to the Dr today and when they called the medical aid to confirm my benefits they were told that the membership has been terminated and only then was I aware of this. When I called them they told me it was an error on their side and it will be sorted within 2/3 days. Unfortunate for me, I'm sick now, I don't know about 3 days from now. They said they'd contact the Dr's office to explain to them that it is an error and their claim will be paid, I sat for over an hour at the Dr's room and no contact was made from discovery to the Dr's office. I'm really disappointed because I rarely use my medical aid and when I finally got sick, this is what I've discovered. My biggest disappointment is that I let them know of any changes and yet they failed to let me know of this insane change. I'm still waiting for a call from one of their consultants as they said they will contact me within 15 minutes, its over 2 hours now. All I know is that I changed my payment method from payroll to private capacity and when I made this change nobody bothered to tell me about any cancelation of my membership.