I emailed feedback@myob.com and received an exemption overnight.
Very easy, just email MYOB the following, it worked for us. Don't forget to add your MYOB ID or
Serial Number
"We are writing to request that MYOB exempt us from the recently introduced "secure invoicing" feature.
We believe the information you are requesting will be in breach of your obligations as a financial services provider to retain the minimum personal and business data necessary regarding our company
We are paying for a subscription that was intended to allow us to invoice our customers directly, and we are no longer able to do this. We must send our invoices for manual processing.
If you are unable to exempt us, we will be lodging a case with AFCA
Looking forward to your favourable decision"