If that’s where you’ve verified and all, then the answer is you wouldn’t be in a supported region. Only those at https://support.brave.com/hc/en-us/articles/6539887971469 are supported.
If Rewards are flagged, generally need to create a Rewards Support Ticket at https://support.brave.com/hc/en-us/requests/new?ticket_form_id=360001302431