If PayPal is charging the wrong amount of shipping, it's likely that you have shipping set up in PayPal that is overriding the shipping amounts that we're sending over to them.
To verify this, here's what you'll need to do:
- Log in to PayPal
- Click the Profile link
- Click My Selling Tools in the leftside navigation
- Scroll down the page and choose to update the Shipping calculations
- Make sure that you don't have any shipping methods set up. If you do, simply make them inactive or delete them.