I need to reactivate my Trados Studio 2014 licence

I recently had my hard drive replaced with an external hard drive - during this process my Trados Studio 2014 and Multiterm 2014 software disappeared. I need to reactivate my licence so I can reinstall these programmes but have been unable to do so following instructions on the SDL website.

I'd appreciate some help as soon as possible!

Thanks in advance 

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