From this page scroll down a bit and there is a Samsung D Fourm B2B Membership you will need to read the Membership Join Process then click on Join where it asks you to sign in to Samsung Account then it goes to a form for you to fill out. It didn’t matter if I had already signed in I had to sign in again through that portal.
I tried this on my work account and on my personal account from home and they both worked.
If it sill doesn’t let you apply Let me know again Monday.
Ron
Samsung Developer Relations
Ron
Samsung Developer Relations