Trados 2017 'License Expired'. Unable to activate.

Trados 2017. On opening today, it says 'License Expired'.

Unable to activate with code. Says 'Activation Failed ... (403) Forbidden.

Then tried to activate on the site. No success.

Then tried to deactivate on site, no success.

Then had option to reset licence. No success.

No help available from Trados. 

And this is not the first time this has occurred.

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