Unfortunately, AMS Shop cannot issue refunds, returns or exchanges on downloadable products once they have been purchased.
It is advisable to make sure you are purchasing the correct book before you continue to the checkout.
AMS Music Shop is a 100% downloadable music site; meaning that there is nothing physical to ship out as all the products are downloadable.
All card details and payments are taken and entered on a secure page and are transferred using https SSL secure socket layers.
BigCommerce who operate/host this online shop are PCI DSS compliant.
In addition, you know that your session is in a secure encrypted environment when you see https:// in the web address, and/or when you see the locked padlock symbol alongside the URL.