Discovery Health Client Service: Dropping client calls & not calling clients back as promised

Good afternoon Discovery Health. I have phoned Discovery Health twice today, spoken to two individual consultants (one named Nasira and the other named Bryce.) I was advised by the consultants that Discovery Health has in recent days introduced a new telephony system that is having technical problems, and as a result both consultants and clients are experiencing poor call quality, temporarily-hanging calls and dropped calls. They reassured me that in the event of a dropped call, they would call me back. During both calls the call was dropped, and neither of the consultants called me back. The client service from Discovery Health is terribly poor, and this is not acceptable service from a health services provider.