I am unable to authorize my new Windows desktop computer as I have reached the maximum I want to have couple of devices deauthrize m 6 device authorization limit on my Adobe ID.

I am unable to authorize my new Windows desktop computer as I have reached the maximum 6 device authorization limit on my Adobe ID.

I have legally purchased DRM-protected books which can only be accessed through Adobe Digital Editions. I am not able to contact support through the online chat as there is no active paid subscription linked to my account
Could you please de-authorize old and unused devices from my Adobe ID so that I can authorize my new Windows computer?
Only keep my Mac and this new Windows 11 computer.