When you combine invoices using Auctiva Secure Checkout you can offer a shipping discount. However, you *must* define your settings on your eBay 'Preferences' page. Auctiva Secure Checkout uses your eBay preferences to determine how you want combined checkout and shipping discounts to work. If you do not configure your eBay preferences, your combined checkout will run on the defaults eBay provides each user.
Follow these steps to get to your eBay Preferences page: