The wording might be an automagic thing they stick in and doesn't mean you have discounts.
I generally use Turbolister to list, although sometimes I do relist. If this was a BIN and you have multiple items, in the shipping it has the shipping price for the fist item and you have to fill in the cost for additional items purchased (of same item) which is beside it. I can't remember what it defaults to if you don't do anything but my guess is zero.... if I recall I have had the same thing happen and it happened because when I changed the quantity of an item up from 1, I forgot to go down and fill in the additional items shipping amount....
