Unable to sign in to purchase the upgrade

Hi all, really keen to pick up the update to Cubase 12 from 11, however when I try to purchase, on the address screen I’m not able to log into my account. What gives? I have no issues logging in on a separate tab into MySteinberg, password is definitely not the issue. Any ideas?

the shop is a different login

Right. And now it seems to be working. A little confusing, but at least I’m getting somewhere.