Hello, @Adrian_A 
Thanks for the reply, but as I am a freelance bookkeeper and it is my client's online banking, I cannot login or contact Nedbank on his behalf. This is a real issue for me!
If, as you say, Nedbank blocks the connection to QBO, then why did I receive several emails this morning saying that the issue had been resolved? Has it been resolved only for some users? Why am I not able to reconnect the accounts that I disconnected? It appears that no one actually knows what is going on!
I'm not really interested in workarounds....they take up way too much of my time. I would really rather have QBO work as it should.
This has been a VERY frustrating time and I have spent endless hours on chats and calls and posts trying to get some answers and some USEFUL help. I'm at the point where I am ready to just give up