Hi brbw
Thanks for your post.
We appreciate your patience on this issue and thank you so much for getting back to us and sharing an update on the issue. It seems that you were still having difficulties accessing the 2fa. Sorry for the inconvenience caused you.
My recommendation for this is to do the basic troubleshooting like clearing the cache, Then, On the browser, Kindly type in myaccount.MYOB.com and you will be prompted to your dashboard. When on the dashboard click on reset 2fa, you'll need to Sign In to MYOB. Please make sure that the email address is the email associated with your MYOB account, After resetting the 2fa you can check it on your email.
Please let me know how it goes. And if you need further assistance, We're happy to assist you.
Kind Regards,
Cel;