Here at MycoHaus we aim to make things simple and easy for our customers. We have added a few new types of payment options on our website in order to give you a better checkout experience. However, our webstore hosted through Shopify, and currently at this time Shopify does not have an option for checking out using your Amazon account. This may be something that will change in the future. If Amazon is your preferred method of payment you can still find all of our products in our Amazon store, www.amazon.com/shops/mycohaus We also except checkout with Amazon in our Bonanza store as well, http://www.bonanza.com/booths/mycohaus We hope that we will be able to add the Amazon checkout option to our site when it becomes available but until then we can at least provide it in our other online marketplaces.