@C-Y0 this is a hosts forum and we have no ability to help. The forum is no monitored by Airbnb. You will need to call them or send a DM on Twitter to @Airbnbhelp
@C-Y0 then it might be useful to set up a Twitter account just for this. It is free and very painless. Alternatively the numbers for contacting Airbnb are at Contact Airbnb
Can you attach a screen shot of your calendar where the date is shown? Could you also tell us which dates are confirmed in the emails? I would just like to understand. Thanks.