No communication for outage by Nedbank

On Friday afternoon Nedbank had an outage from 1500 to 1900. During this time I could not access online or mobile banking at all. I understand that this does happen but the point here is Nedbank did not communicate with their customers at all which is absolutely unacceptable. The smaller banks send you an email or sms telling you the reason for an outage so why not Nedbank. This is extremely bad service fir Nedbank?????