You have obtained a bonus of 300 points since you haven't used any 200 miles card.

Hello,
could you add some more detail what is unclear here?

That being said, I'll say right away that there is a slightly bad wording here in English.
In fact, when the one who wins the round doesn't play any 200 miles cards, they win 300 bonus points. However, the message always says "You have obtained a bonus of 300 points."
It should rather instead be something like, "bonus of 300 points obtained for not using any 200 miles card."
since the message doesn't necessarily refer to you, but rather to the round winner.
I'm assuming that is what confused you.

Hope that helps.

@Nikola:
Yes, That's what I mean, there's already a english error.

then this goes as a bug report, but yeah, there is a clear typo.

Thanks, it appears that this has already been corrected. The message now says:
"Bonus of 300 points obtained for winning the round without using a 200 miles card."