How does Shopify get away with charging fees on a cancelled transation?

Shopify Discussion
8

SHOPIFY ARE TAKING THE MERCHANT FEE - IMMEDIATELY - IT DOES NOT MATTER HOW QUICKLY YOU CANCEL AN ORDER - YOU DONT GET THE FEE BACK.

I LOSE BETWEEN £60-100 ON EACH OF MY CANCELLED ORDERS BECAUSE THEIR VALUE IS £1500-3000

SHOPIFY ARE STEALING MY MONEY