I don't want to make a new post about this but same as OP. I'm confused, if you ordered via online do you get it sent without needing to confirm? because I did go through the confirmation process and it failed... would be nice to know (yes, preorder on the 15th, 21 ultra)
If you ordered direct from Samsung you don't need to claim - they'll send it directly to you. If you ordered from a 3rd party you'll need to claim. Ordering direct - Your imei will already be registered against a claim for the accessories, I guess that's why it may have failed (assuming you ordered dirct)