Undisclosed technical issues and *****ulent bank fees

I changed my bank due to several reasons. The most recent event was the bank charges which was not transparent. With my previous bank I used to pay almost twice the amount for monthly fees. I received a text message from absa last night which stated that due to technical issues I have incurred additional charges between may and June. But no where along the line was I notified that I would be charged and that there was a technical issue on absa side. It's seems that absa has the same issue and is not be transparent with it's customers. I was charged for additional fees which I was notified about and they deduct the funds and then notify you. Looks like we need to advise the ombudsman about this. We are hard working individuals which banks are consistently *****ing from its own customers. Is the reason why I changed my bank but now it's seems it's ***** with all the banks. We will approach the ombudsman for this