If local authorities have reason to believe that a host has withheld information to make thank you payment claims, the local authority has the right to make further investigations.
Os oes gan awdurdod lleol reswm i gredu bod lletywr wedi dal gwybodaeth yn ôl i wneud hawliadau am daliadau diolch, mae gan yr awdurdod lleol yr hawl i wneud ymchwiliadau pellach.