Catch 22

That's exactly what happened here.

I had to register for a course of Polish language (level A1 - beginner) on internet. The site offers a version in English for the basic stuff, but no information at all on it.
Which means that in order to register in Polish language A1 you have to understand the information written in Polish. But if you understand it and you're able to register you don't need to take the course because you already speak Polish. Therefore the only way to register on the course is not needing it.

Catch 22, dude...