Dear BTiLa
Good day and hope you doing great.
Thanks for sharing the above in Microsoft forum community, pleasure to assist.
We do apologize for the inconvenience caused to you due the above issue, to isolate the above issue
Based on the above issue, first thing to sort out is the authentication issue, and i notice you mentioned you didn't receive the cord despite requesting it, we do have our dedicated Microsoft authenticator app team that handles such related issue, so it is recommended to post through Microsoft Authenticator - Microsoft Q&A so that a support agent from that team can verify and provide you with the necessary information. Once they fix that then you should be able to access your admin to reactive your subscription.
At this time, your kind cooperation and understanding will be greatly appreciated.
Have a great day and safe.