Google translate se nedávno dost vylepšil a dává velmi použitelné výsledky:

Hello,
I bought the XY program that I installed on my computer and activated it.
Now I bought a new computer and installed the purchased XY program on my new computer. Upon activation I get the error that the program is already activated on another computer.
I will only use the XY program on a new computer, and the program has been removed from the old computer. Can you please delete the license from my old computer and allow my license to a new one?
I used the program on my old computer for approximately 14 days.
Thank you