Incorrect freezing of accounts

After upgrading my accounts to Prestige Status 18 months ago Standard Bank froze all my accounts saying I had not ever handed in FIKA documents. This is false as I did when my accounts were upgraded. secondly I never received any warning before my accounts were frozen. I then provide a fresh set of documents and all except my current account is unfrozen. ***! Bank claims there is a system problem. Unable to transact from 9 to 18 March. Eventually current account is made active. On day before Easter long weekend current account is again frozen. Apparently a system fault again. I'm told that it will take 24 hours to reactivate the account. 72 hours later still unable to transact. Why should I or anyone else want to do further business with bank that is unable to service their clients? Give me just one good reason please! Really no fun when I cannot feed or entertain my family over a long weekend and holidays.