The mojority of places who offer money orders will refund your money order if you return it to the location where you bought it. You may be charged a service fee by the company and they will not refund the cost of the money order. You will have to show identification and sign a claim form.
Take the money order, along with the receipt, back to where you purchased it. You may be asked for identification, but there should be no problem getting your money back.
You simply take it back to where it was initially bought. You will be able to have it cashed back and refunded to you but they may charge a minimal fee
Go back to where you purchase the Money order and ask them for the claim form.They may have you call the company you purchased it from. If you have it in hand you can return it for cash though.
You should go to the place where you purchased the money order. Most places will have you write on the back that it was not used for it's intended purpose and have you sign it. They will then give you the amount the money order was made out for. Most places will not refund the cost of the money order.