Unacceptable waiting time to speak to an agent (when contacting Stanlib Call Centre).

Working people do not have the time to sit on the phone for hours waiting for an agent to respond on your somewhat useless Call Centre line. Please implement a system whereby if there are high call volumes, you offer the client an option whereby you will call them. Or alternatively employ sufficient staff that you can gaurantee a (maximum) 5 minute agent response time.