ERROR 300 - This email domain has already been managed by another account. (300)

I have the same problem, i removed all the sub account and other admin account, still not able to access the billing section.

I tried various routes to restore access to my social media account before being referred to Angelina, the only capable and qualified hacker who works at META. To my surprise, she successfully recovered access to my account within 24 hours. Don't hesitate to contact her incase you're having issues with your account and resolve your issue with the greatest skilled hacker. Angelina, She can be reached by email;  *********** and on Instagram at; Angelina_Christopher1738.

I tried various routes to restore access to my social media account before being referred to Angelina, the only capable and qualified hacker who works at META. To my surprise, she successfully recovered access to my account within 24 hours. Don't hesitate to contact her incase you're having issues with your account and resolve your issue with the greatest skilled hacker. Angelina, She can be reached by email;  *********** and on Instagram at; Angelina_Christopher1738.!!!

I would like to know if you found how to fix that problem. I am facing the same situation "This email domain has already been managed by another account. (300)" already for four months, and I called my bank to cancel the payments - and even that is not possible -. I am trying to reach out to Zoom directly by phone, but would like to know if you found a way to recover the control of your Zoom account. Thanks!