Should I ask the school for a fee refund?

when I applied for a grad school and paid the application fee, I also paid the courier fee since I am an intertnational student. See they didn't even ask for it. Only the 100 $ appl. fee, but I added an extra 40 $ to that and explained that I need the admission letter be mailed to me by fedex. now, 6 months later, they send me the letter by the regular mail!! and 6 months!!! I need my 40$ back. Should I ask for a refund?