@Klaudia1
If you are sure that you had your calendar blocked, contact Airbnb again and ask them to take care of the situation.
I have seen some disorders in the calendar, too.
Sometimes, I need to make the blocking twice or three times, in order to see the dates blocked.
Also, when I have my dates blocked, sometimes I still accept inquiries for those dates. Fortunately, I hadn't had a booking.
I think sometimes Airbnb system may face some problems or glitches. But I am sure that if they recognize it, they will take care of your problem. Of course, don't cancel or don't ask your guest to cancel before contacting Airbnb.
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