Software Products

I have just joined Amazon to sell my new software application “HTML Inspector for MacOS”. The software is downloadable and it works with full functionality, except for saving which is disabled.

Once a buyer completes his/her purchase, an email is sent to him/her with a registration code that will unlock and activate the full functionality of the downloaded software application.

Problem:
Amazon is forcing a standard delivery charge, although in my case there is no delivery, just an email which contains the registration code. It looks like Amazon does not cater for Digital Delivery.