The whole time i have been going to the treehouse i havent had any issue except one time i thought i didnt get proper change and also felt what i had got was a lil leafy. anywho i called back and explained the issue. I had no issues when i went back. they have a good system. I was told wait ten minutes so they could count. Soon enough i was getting back more change and also was compensated for what i felt was incorrect. It was like any real business. The customers always right.