Problems with deactivation / Computer not available / Acrobat Pro 2020

[Prof. Dr.-Ing38312730lldr]

[Image with S/N removed]

Hello, unfortunately after reinstalling I cannot use the license I purchased two years ago (Acrobat Pro 2020).
- I logged in on one computer and deactivated Adobe. Unfortunately, that didn't make any difference.
- I no longer have access to two older computers on which the license was activated (scrapped and stolen).

What can I do now?

The activated computers are not visible in my online account.

Thank you for your support!

[JR Boulay]

==> https://account.adobe.com/plans/

[try67]

NEVER POST A SERIAL NUMBER TO A PUBLIC FORUM!

Anyone can take it and use it, and then you'll really have a problem...

I've removed the image with the S/N from your post.