Not at all, you have been given the entirely wrong end of the stick.I was under the impression that although its not added to your certificate when you hold a closed licence you need to inform firearms of all new permissions and they will then contact you once they are happy for you to shoot on them. This is regardless of if its already been cleared by someone else. If anything that should technically speed the whole process up though as the shouldn't need to land visit due to already checked.
But mu understanding is you only can shoot on land they know you have written permission on. I think there are land permission sheet you can get to send in even. I could be completely wrong though.
You don’t need to register land, you do need to satisfy yourself that it is cleared for the calibre you wish to shoot.