yes, I used the same email/password creds I used to login to the shop - I know they’ve not changed as my keychain hasn’t changed since I purchased 10 when both domains were (seemingly) linked.
I also have problems with Steinberg id. I ask for a reset password but the code I get in the email is not accepted. Have tried a hundred times so now I have given up. Surely there must be something wrong with the MySteinberg website?
This drives me nuts! I have to reset my password every time because my password manager sees the same domain name and expects them to be the same password and I just get mega confused. Bad UX!