Hi Pawel,
Thank you for contacting the Microsoft Community.
I recognize that access to the materials is crucial for you and your company, especially given your long-standing role and experience. Allow me to provide further information regarding this inquiry.
Please note that you've reached that team that handles inquiries and concerns related but not limited to renewal/enrollment, MCT Software and services, and LDC. We possess the capability to assist MCTs with technical issues when accessing relevant web portals. Therefore, the accessibility of MCTs in LDC may differ from the access utilized by Partners.
It must be incredibly concerning to have had access to these resources for so many years, and it is currently unavailable. I empathize with the challenges you're facing, particularly when it comes to managing lectures without sufficient support from MCTs.
As a learning partner, I've seen others in your situation wanting to download course materials from the Learning Download Center, and here’s what worked for them.
Training Services Partners will need to coordinate with MCTs, who are authorized to access and utilize the course materials. This collaboration will ensure you can access the resources you need.
Coordinate directly with Microsoft Cloud Partner Program support. They have the necessary tools and expertise. Also, engaging with them directly can lead to a resolution for your specific situation.
They will create a separate case with a different reference ID and assist you from here. You may refer to their contact details at the link below:
Microsoft Cloud Partner Program support
Then, provide the concern summary. After that, please choose the category selected below.

Once done, please click the "Review Solutions" button shown below.

On the next page, you'll be given the recommended steps on how to join the Microsoft Cloud Partner Program. And if you need further assistance from real-time support, please select the button below.

You'll then be routed to the next page, requesting your contact details and other information so their agent support can contact you directly. After entering your details, please submit (refer to the image below) and you'll be given a Case ID as your support ticket reference.

Also, you can visit the link below as a reference guide:
Please allow 24-48 business hours to get contacted/assisted by them.
I am fully aware that the resolution above has been provided on your pervious thread. Thus, we hold your understanding and cooperation in high regard. Similar cases with other candidates have been successfully managed, and this has been verified.
Rest assured that you can count on the specialized team to handle your issue with care. They will consider your feedback and work to find a solution that meets your needs as a Learning Partner.
If this solves your problem, please indicate “Yes” to the question. If your inquiry was not fully resolved, please post a new question so we may continue in assisting you. This case will now be closed and locked.
Best regards,