Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear Ilias Mandalos,
Thank you for visiting the Microsoft Community.
I understand that you are currently unable to log in to your auxiliary organisation account for Power BI and I understand your frustration.
I wish I could solve your problem, but your issue seems to require more specialised support and I suggest you try to seek help from the community below, where there are more experts in the relevant field who can provide you with a better solution.
To get help from Microsoft Authenticator Support Centre for resolving two-step authentication, please click on this link.
Microsoft Authenticator - Microsoft Q&A
We sincerely hope that if you contact the right department, your issue will be handled properly. Thank you for your understanding!
Best regards
Isabella-MSFT | Microsoft Community Support Specialist