Thanks for posting in the Community, Katia!
I understand you're having fundamental issues with your ANZ banking connection in QuickBooks Online. There is an ongoing product investigation with ANZ bank getting error 106 for standard feed connection. For reference the investigation number is INV-92358. Our banking team is aware of this behavior and investigating the incident. I would recommend contacting our Care Team. That way, you can get notifications as soon as a fix has been deployed.
The error occurred due to there have been changes at the bank provider which interrupts the current connection.
As a work around our team have advised to upgrade the bank connection to Direct feeds as almost all ANZ account types are eligible for a direct feeds connection to continue downloading your bank transactions.
You will have to disconnect the current ANZ bank connection and re-enroll them through direct feeds. You can refer to this link to learn more: Upgrade to an ANZ direct bank connection in QuickBooks Online.
Post again in the Community if you have further concerns. The team is here to help you.
