123, X Street, Y Avenue
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Austin Parker ,
I want to cancel my order which I made for the fifteen rolls of the lemon “waves” wallpaper. I am afraid the color is not in sync with the carpet in the master bedroom. The number for my order is #4444.
Pleas refund the amount as this is included in your policy. I apologize for any convenience caused by my request.