Disgusting service from Momentum Health

My sister signed up through a broker in March this year and has then already been given the run around when they said they were updating their systems etc. She was then told that membership was finally approved about 3 weeks ago and still to this date no documentation has been received, and their broker has contacted a manager and still no response from Momentum and the membership number that was provided is unrecognized. This is unacceptable from a Medical Scheme company and needs sorting out ASAP!!!!!