Deactivation issue (SDL TRADOS 2021 + 2017)

Hello!

I want to return (deactivate) the license for both SDL TRADOS Studio 2017 and 2021.

I received a message from SDL regarding my Offline deactivation ticket.

I do not know where to enter this one.

Any ideas?

Also,  although I have a valid license for Studio 2017 I cannot find this version on the page with Licenses.

Can somebody help?

I must get this done before tomorrow noon (GMT+2).

THANK YOU!!!

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