There are a couple of reasons why you may see this page while attempting to verify your phone number.
It could be that:
The phone number was changed too many times, or,
There were too many requests to resend the verification code.
In either case, you can reach out to our Support team for help! Start a chat by tapping the message button in the bottom right corner of the screen or send an email to firstname.lastname@example.org to get in contact.