Hi, I always rent Saturday - Saturday and will do 7 days, 14 days, 21 days, etc...I can set check in day at Saturday with minimum 7 day rental. My issue is I have some people book 8 days checking out Sunday or 9 days checking out Monday. I don't see a CHECK OUT DAY? I have in house rules Saturday - Saturday, I have in my description Saturday - Saturday but still get the occasional 9 day booking? How can I can control this?