TS3 World Adventures codes not working [SOLVED]

I installed TS3 from my cd, completed, no complications.

Then I downloaded and opened the World Adventures pack, all fine.

But when I tried to install the World Adventures EP it kept giving me the same error (see picture) even when I tried all the codes inside the installation guide.

.

This is the error it gives me, excuse me for it being in Dutch.

The basic translation would be:

.

"During the installation it has been found that the regional installationcode of The Sims 3 differs from what is necessary to play this Expansionpack.

For this product you need the same regional code for The Sims 3, otherwise you can't play this game."

.

.

Please help me?