I have a retail website which I'm trying to use this plugin with and customers are becoming confused when they add one item to their cart, then continue shopping and upon adding a second item to the cart, the shipping fee is being added again. And again with adding a 3rd item, and so on.
Is there a way to essentially "lock" the shipping calculation so that no additional shipping cost gets added when multiple items are added to the cart?
Here's my site:
Your Thoughts?, Thanks!