So, got my tax return in the post today.
And found that the government owes me €1177.48! Yay! (That's about USD 1400/GBP 780/CAD 1800/NZD 2000.)
And it only took them about two weeks, judging by the date on this entry. Which is a pretty quick, I'd say, especially since we were among the last to file our taxes.