Urgent Complaint Regarding Poor Service - CALL ME BACK !!!!!!!!!!!!

I HAVE CALLED ABSA IDIRECT THREE TIMES, AND EACH TIME I WAS ON HOLD FOR OVER 30 MINUTES. WHEN SOMEONE FINALLY ANSWERED, I WAS EITHER TRANSFERRED TO ANOTHER TEAM OR TOLD THAT A LINE MANAGER WOULD CALL ME BACK. I HAVE BEEN TRYING TO RESOLVE THIS ISSUE SINCE LAST WEEK, BUT NO ONE HAS CONTACTED ME. THIS LEVEL OF SERVICE IS UNACCEPTABLE. AS A CLIENT, THE LEAST YOU COULD DO IS RETURN MY CALLS. IT APPEARS THAT THE RETENTIONS TEAM DOES NOT HAVE THE CAPACITY TO HANDLE CLIENT REQUESTS, AS THEY DO NOT ANSWER AT ALL. I AM TRYING TO GET MY INSURANCE REVIEWED, BUT AT THIS POINT, I AM CONSIDERING CANCELLING DUE TO THIS RIDICULOUS SITUATION.