FNAC CD-Key is different

[Thomaz de Oliveira dos Reis]

I bought the game through download at fnac.pt, but the CD KEY I got is
in a different format: XXXXX-XXXXX-XXXXX-XXXXX, 20 chars long... It
doesnt fit the inside game key format..

is anything different with fnac.pt cd-key, or between windows and
linux version.... I'm also trying to contact fnac.pt if they know
about this....

thanks!