Shocking service from ABSA business division

Absa business Banking Arbour Crossing must be the worst of the lot to deal with. Not only do they not respond to urgent emails , they won’t take phone calls either. After a FICA problem on their end accounts have been frozen for hundreds of businesses. This has been going on for 10 days now with no end in sight and no feedback from the business bankers…. and all this over the month end and tax periods. How do they expect businesses to run when they freeze their bank accounts?