Lawyers/Attourneys from Denmark will not do a single thing about these sort of things. Furthemore, the fault ultimately lies at your side, as I mentioned before.
BioWare is not scamming anyone. What possible reason could they have, to want to scam someone? Money? I honestly doubt that. They made ~ $90 million dollars purely from Pre-orders, in the United States. Almost 60% of what they used on resources to construct the actual game, if I am not mistaken.
I haven't been able to find any sources on how many European Pre-orders that were placed, but I'm guessing it's not on the low-end.
As I mentioned before, and several others before me. Everyone has been entitled 30 days free gameplay. Everyone has been given such promise. BioWare simply requires your creditcard information before-hand, so they can automatically withdraw each billing cycle, starting as of 21st/22nd January, 2012. There is no catch, I simply do not see how people can have such a big problem with this little factor.