Standard Bank - non existent service offering?

After being a customer for in excess of 30 years I will be moving my business to a competitor. Service is not existent. I get informed that staff don't have access to a "hard" phone so cannot contact me, but they are phoning my wife every second day to offer new services. I guess this means more business for them so it's justifiable. Keeping a 30+ years customer happy, clearly isn't. When I am lucky enough to get a response to an e-mail, I need to provide my life history including bank account details, id numbers and transaction details over an unencrypted e-mail? Really Standard Bank, have you not heard of POPIA? There has been absolutely no attempt to try and help me over the last few weeks. Unfortunately you have to select at least one star or Standard Bank would have received zero.