Please see PSA: Flagged accounts issue (August 2023 update)
If you are still having issues, create a Rewards Support Ticket at https://support.brave.com/hc/en-us/requests/new?ticket_form_id=360001302431
If you made a ticket and have not yet received a response, you may need to be patient. If been more than 7 business days (means weekends don’t count), then create a topic and provide your ticket number. Support can take a look to make sure it’s not being missed.