Tried to submit a new ticket and got:
ERROR
Failed to send
If the ticket system in “My Account” does not work try contact here to let them know https://www.advancedcustomfields.com/contact/.
I have had this same problem across multiple days.
There was an issue with emails being sent on this forum that was fixed. It is possible that the same issue is affecting the account site. Try using this form and let them know there’s an issue there https://www.advancedcustomfields.com/contact/