You are able to access all of your receipts from your account on the website.
You can log into your account on powermusic.com and go to MY ORDERS. When you click into your order you'll see the option to "Print Invoice." This will allow you to save the order to your computer as a PDF receipt.
If you need to print a receipt for a Power Music NOW payment, go to MY ACCOUNT and then the POWER MUSIC NOW tab. On the history, each charge you receive has an order number, you can click on it and print out your invoice.