airbnb is advertising the wrong price

[Renate15]

The price which is shown to my guests by AirBnB sometimes does not match with my price. I´ve got an enquiry for the whole september - from 1. - 29. for 2 persons - and it was shown less than 400 € although my price is 60 - 65 € per day. 

The same happend before in June or July and I couldn't find any reason. Therefore I deleted the week and monthly discount. But know it happens again. Anybody can tell me whats going on or what I am doing wrong?

I´m afraid of instant booking. What happens when the guest book at a much lower price than my offer? 

[Clare0]

Hola @Renate15, I just did a price check on your listing. Keeping in mind I am seeing the price in USD (my currency choice) your base nightly price comes up as $68 USD.  When I selected a 3 week period in August, it calculated correctly $68 x 21 days = $1432.  So by removing the weekly and monthly discounts, looks like your problem has been solved.