That's part of the problem, it's an integrated seatpost. There is a tremendous amount of flex. The LBS said this is a know problem and they are very careful to mount the seats at the top until the customer buys it. They know the seat clamp will damage the paint, not a big deal when one person rides it since there won't be large adjustments in height.

I've let them know I am unhappy and they are responsible and should be making us happy, but my wife is a kinder person than me and is happy enough with the crappy fix they did.