is your account (email and so on) to the portal mapped to an maintenance contract?
No Account Association looks like there is no contract information.
While you createing the account following information is requestest:
“Please enter any other information such as Sold-to, serial number, contract, PO or other identifying information you believe might help us complete your registration”
You can write to: firstname.lastname@example.org and request to fix the problem.
Please add the information which I have described above.