Hi @amongmany , welcome to the Auth0 Community.
We do not “hard cap” MAUs so you can use beyond your 10k limit. I believe you will see a notification in your dashboard and possibly be sent emails about the overage. We also would reach out if this remained over quota for a couple of months or so.
It sounds like you have already done the corrective steps and reached out to our support and sales who can help you further with the next steps, I’m sure you’ll hear from the team soon.
Thanks!