Business Verification for Facebook Auth

It's now been about 4 weeks of back and forth with Meta over trying to complete the business verification process so I can activate Facebook auth.

I get a "need more details" notification, complete what they ask me to, and then I get the same notification with a different issue. Repeat ad infinitum.

It's the same repeating issues - can't verify email, can't verify phone number, can't verify website.

...but I've completed the phone and email verification, and my business name is in big bold letters in the header and footer of the website.

I don't even get prompted to re-do any parts of the business verification form(s). I click the button to update business verification details and it insta submits the form.

Has anyone else experienced this?
I can't even contact Meta support, as their help centre is a loop of the same few pages with no chat or contact form.