As I said in the other post you made, this is consistent with policy. August 1 exists and is exactly 11 months from your check out date of July 1, so that is the day that you would book a June 30th reservation. The situation in the guidebook is for a day that doesn't exist. for example, if you are interested in a reservation for August 30 (checkout on August 31), eleven months would be September 31 which is a date that doesn't exist. In that circumstance, the exception in the guidebook applies and you would be able to make the reservation on September 30 instead. Hope this helps. Good luck tomorrow!