Denied access to my account for days... due to their system failure

Due to the banks migrating systems I have been denied access to my bank account for three days now. I am not able to get a statement or pay beneficiaries. I have a business account and suppliers need to be paid on time. Three days later, loads of emails, a few calls from staff who are not trained and are unable to resolve the teck issue, a report to the banking ombudsman, and still not a call from management!- never mind a solution. I am now able to log in but all my beneficiaries and settings have been deleted, so I still cant transact. Bidvest bank systems are appalling and inefficient. Their customer service is non existent. NEVER BANK WITH BIDVEST!