Blowfish MalibuBlowfish Women's Balla Wedge Sandal

If I usually wear a 9.5 what size should I get? 9 or 10?

Why is there no size 9?

Why are some people receiving Blowfish brand and others are receiving “Fashion” knock off brand that fall apart?

What is the difference between the brown rancher and the brown rancher canvas / whiskey dyecut? Both show the same shoe but one is $19.99,other $59.99