Can’t purchase plugin

Tried to purchase the plugin – it failed with… also sent email to customer service on the web site.

Ok, we attempted to download ShopMagic to the dev site.. attempted.

Kept getting an error message:

Error: Your card was declined. Your request was in test mode, but used a non test (live) card. For a list of valid test cards, visit: https://stripe.com/docs/testing.