@Brian113 After playing with your listing, it definitely seems that something is going wrong. Something you might try is, in addition to settting that all bookings must start on Saturdays, set the minimum-stay value to 7 days. That effectively says exactly what your listing says now, but the change might get you out of whatever logic error is happening with AirBnB's calculation. A long shot, but easy enough to try.
Also, here are ways to contact AirBnB: Contact Airbnb
And some phone numbers:
Argentina: +54 11 53 52 78 88
Australia: +61 2 8520 3333
Austria / Österreich: +43 72 08 83 800
Brazil / Brasil: +55 21 3958-5800
Canada: +1-855-424-7262 / 1-855-4-AIRBNB (toll-free)
Chile: +56 229380777
China / Zhongguo - 中國 / 中国: +86 10 5904 5310 or 400 890 0309 (shared-cost)
Denmark / Danmark: +45 89 88 20 00
France: +33 1 84 88 40 00
Germany / Deutschland: +49 30 30 80 83 80
Greece / ελλάδα: +30 211 1989888
Hong Kong / Xianggang - 香港: +852 5808 8888
Ireland: +353 1 697 1831
Israel / Yisrael: +972 3 939 9977
Italy / Italia: +39 06 99366533
Japan / Nippon - 日本: +81 3 4580 0999 or +81 800 100 1008 (toll-free)
Mexico / Méjico: +52 55 41 70 43 33
Netherlands / Nederland: +31 20 52 22 333
New Zealand / Aotearoa: +64 4 4880 888
Norway / Norge: +47 21 61 16 88
Peru: +51 1 7089777
Poland / Polska: +48 22 30 72 000
Portugal: +351 30 880 3888
Puerto Rico: +1 787 919-0880
Russia / Rossiya - Россия: +7 4954658090 or 88003017104 (toll-free)
South Korea / Hanguk - 한국: +82 2 6022 2499 or +82 808 220 230 (toll-free)
Spain / España: +34 91 123 45 67
Sweden / Sverige: +46 844 68 12 34
Switzerland / Schweiz / Suisse: +41 43 50 84 900
United Kingdom: +44 203 318 1111
United States (USA) / Estados Unidos de América (EEUU): +1-415-800-5959 (local San Francisco number) or +1-855-424-7262
