You plonker, all you had to do was go and apply to vote where you are now! They're merely asking why - so you tell them " I work here" and it's more than enough.
What about you, other EU citizens residing in Poland, are you going to vote ?
Voted a few hours ago. No problems at all, though one thing - they shouldn't have given you the vote for the Sejmik. If you can, I'd go back and report it to the electoral commission there.