Deactivation / reactivation of license after installation of upgrade and changeover to a new PC failed

Hi,
as my previous post suddenly disappeared from this site, I repeat the contents, but it might be sent twice.

Trying to return my license of my old 2019 Studio Pro version in order to upgrade to Studio 2024 on a new PC, I fail to return the old license online as well as offline.

I need a new activation code for the  new PC and the 2024 upgrade. Could you  help, please?

Regards, Anne

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