Revoked Licences LR6 et PS CS6

Hello, Since last week, I have had problems with this software. In fact, following an error on the authorization to install Creative Cloud, my official Photoshop CS6 and Lightroom 6 applications ask me for the serial numbers of the apps and refuse them to me. "The serial number you provided has been revoked".

ADOBE support asked me to contact the reseller to update these serial numbers.

Here is his answer:

"Perpetual licenses (CS6 and earlier) are no longer updated at all. As long as you use the right platform (operating system compatible with this obsolete version), you can use the software for life.

However, the CS6 is no longer supported (neither by Adobe nor by ourselves), so it is impossible to obtain serial number I'm sorry. 

If this problem persists, and a priori it will be, you will have to refer to the forums / online community. "

For info, the licenses were obtained by the PHOTOGRAPHIC FEDERATION OF France for the IMAGE 2000 AIRBUS HELOCOPTERS photo club in 2013 and 2015 and I have the numbers.

Who can help me please, thank you.

[Moved from Community Help (which is about the forums) to a better forum... Mod]