Hi Klaas,
If you order the deluxe at bol.com you also get another code. I phoned them for that. It's 2 separate orders, so 2 separate codes.
If you would have ordered the whole set in one order then you only get one code
Strange but that's what they told me on the phone.
When you order the deluxe at mk.com you also get a code. But make sure you got the right newsletter where things were explained about the code. I got the wrong one and it turned out to be that I didn't enter my countrycode when signing in to the newsletters (years ago). If you didn't get the newsletter with the info about the codes for priority seating then send a mail to mk.com, they will change your info, so you will get the right one next time.