Licence deactivation

Good evening,

May  I ask the SDL team to deactivate my licence as to re-use the two activation codes and register them once again on new laptops. I tried yesterday resetting one of the two codes (One licence SDL Trados 2014 SP2), however, today the activation code didn't work, and I don't know how to generate the offline deactivation certificate.... please do it for me.

Thank you.

Amina