Unable to use SketchUp 2016 on OS X 10.8.5

I broke my piggy bank
I buy the 2016 software this morning
I made a terrible mistake
it can’t work with
I’m on mac os X 10.8.5
I want exchange with the 2015?
how to do

Heya Jean,

Feel free to contact our customer service team, and they can work with you to solve this issue.