I thought I blocked dates on the calendar because I permenantly rented the space I was airbnb'ing. Now this morning I just see I have a reservation! I have no idea how to eradicate this. I can offer the person another bedroom in my house, but not the apartment that he booked for. I can't see a way to get in touch with him or how to cancel or even how to message airbnb for advice. Any info would be greatly appreciated! And yes, I finally figured out why it didn't take. I didn't realize that I didn't press the save button each time I clicked block.