ABSA - Terrible Client Service - (No relationship nor partnership between client and Bank)

Terrible Service, I absolutely feel hopeless, no where to turn, we opened our account back then trading as Volkskas on the 1st of Oct 2001, for the past 5 years everything just went downhill, we are a small to medium business, moved from Pretoria Branch, to Menlyn Branch due to bad service delivery, in the beginning relationship good, honeymoon phase then everything went south, we were then referred by our Personal Private Banker who worked at Centurion to a Relationship Business Executive at Centurion, WORST mistake ever. I have been trying to get assistance, via phone calls, e-mails, - all of this ignored I have send the e-mails to this effect to the business Relationship executive at Centurion - ignored, *** - ignored, *** - ignored! We have a current account, a credit card account, fleet card account, our credit card account is listed on our current account, for many years. Suddenly since October 2020, ABSA without informing their clients changed from Master to Visa, this is when everything went wrong, we were no longer able to draw Statements on credit card, to verify or to allocate transactions, despite contacting, e-mailing more times that I can mention. We as business are supposed to be in partnership with our Banks, and rely on their assistance, but unfortunately this seems to be something of the passed.