Hello David,
Not sure if I’m too late to answer this for you, but here is a website to turn off 2FA if you have back up codes. Scroll toward the middle of the page.
Go to https://account.ui.com, enter your username and password as usual, and when prompted for the 6 Digit Token, click on Reset 2FA instead.
https://help.ui.com/hc/en-us/articles/115012986607-How-to-Enable-Disable-Two-Factor-Authentication-2FA-#5
Hope this helps