Here is a link to the list of all the Pangolin dealers in Europe. And if one of them can't help you, I suggest you send a message directly to Pangolin and ask them about the problem.
It could be that Poland imposes very high import taxes on electronic items. If that's the case, then it would explain the high prices you were quoted from Mediam. But I would check with a couple other dealers to be sure, and also check with your local customs office to see what sort of taxes will be charged...
Adam