Damn it sounds like it's easy over there. I get AM category (scooters up to 50cc) free on the account of having B category, but I have to go through a course costing over 600 euros and then do the full theoretical + riding exams like I did for B cat (those cost a bit of money too, not too much). This is also cheaper than getting it from scratch which would be 900 euros for the course (more theory lessons) and be limited to 250cc at first.
I've been contemplating it for a few years now, but something important is that if I want to get an exam time the same year, I'd have to do the course in March or April (when it might still be snowy lol) because exam times are always booked up... And particularly last few years since I'm not working full-time or even half-time due to burnout, I'm broke as hell after winter because of the heating costs and dropping nearly a grand on getting a license and then another grand or 2 on a fixer-upper first bike doesn't seem like a great idea anymore :/ Will have to wait until mid-life crisis.