Shipping charges not multiplying

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I set up a Shipping profile for a particular type of item. (I gave it different shipping costs for 3 zones I created) I then went and selected/checked all the specific items that it affects in the profile.

When we run a test cart with more than one of these items it only charges shipping once. We would like it to charge the zoned amount for EACH item as it will cost more than the one time charge. Am i missing something or do I need to set this up differently.