That's an insane price....
Why don't you just return it if you bought the wrong size?
They didn't have the size I needed so I had to order the right size from another vendor. I could take the store credit but they were going to charge me 20% restocking fee. If I'm going to lose $90, I'd rather pass the savings on to another snowboarder instead of giving to a shop who isn't willing to work me me =(