Incompetence and inability to communicate.

We purchased a property towards the end of 2020. The bond was registered with Standardbank. In all of the administration it was indicated that we would be occupying the property. Yet Standardbank chose to list our previous address as our residential address. I phoned them - after being on hold for 17 minutes managed to speak to a consultant. He promised me that the correction has been made on their system. (This was early 2021) Last week we received our first email from Standardbank - and to our disgust the address had still not been changed. This is not the level of service I expect. It shows incompetence. What more must I do to make them do the correction? They do not respond to emails sent and I do not have the time to go to one of their branches and to make the amendments on their system. I have also asked for bond statements to be emailed to me - in the hope that they would be able to do this effectively. Unfortunately, they have not managed to do this either. Their email address of *** does not exist either - yet it is on their website and on their correspondence.