[user3]

For some reason they always want to give me a darker powder too. the SA told me it's because typically foundations turn lighter after a few hours of wearing it. I don't really have that problem mine usually either stays the same or goes a bit darker. So the darker powder just makes things worse. I alway insist on the exact match even if that means buying 2 powders.
If it is not working out I would take it back and get the right color.