Standard bank unable to unblock useraccount

Our Business Internet banking has been blocked. 25 Oct 2021. Tried to call. They would call back, Still waiting. Logged an incident via email on 25 Oct. Received an notification with number ***8 and assurance that they will call back within 24 hours. Still waiting. Went to the bank - queues longer than ever due to long weekend. Called again and waited and waited and waited in the telephonic queue - received a promise they would call back. Empty promise - still no joy whatsoever after more than a week. Please share with me what on earth must be done to get some service?