I'm having a the same problem on a Sunday.  Calling is not a viable option as your offices are closed.  Square needs to be able to verify identify using a company 2-step verification contact mobile number as well like other companies.  I should not have to wait until Monday to make a simple change.

Hey @tvanzie, I'm sorry to hear that you're encountering trouble with this as well. I've surfaced your post with our CS Team and asked someone to reach out. I can't access and share account-specifics here for privacy purposes, though someone will be in touch with you as soon as possible. Please keep an eye on your email inbox for next steps.

I am having the same issue with no access to original email and need to change it now if possible. i have an event in 30-minutes and need to change my email before then. i tried to call in today, Saturday.

Hello @rj007, it sounds like you still have access to take payments luckily. If you don't have access to the email address on file you will have to call the Customer Success Team to update it. Currently we offer support Monday - Friday. If you really need this done today you can subscribe to Premium Support which gives you 24/7 support. Premium Support costs $30 dollars a month.