problems in Threadless

on march 18, 2008 we make an order, send from threadleass on march 19, 2008, with UPS global mail innovation economy, but it's not arrived.
we haven't received the pack, and when we call UPS they tell us the number of tracking, but we haven't because threadless says he haven't this code of tracking.
UPS says that without this number the pack is lost.
We have already paid this pack ( 157 $ ) and we are very very furious
We don't know if we have to call italian or american UPS and we don't know what we have to do.
Can you help us to risolve this problem???

Short story... ordered shirts from threadless. One shirt has two obvious holes. Email about exchange or other possibilities. I can get the shirt exchanged, or I can get a 10 dollar coupon. I say okay, that would be fine, but would feel a lot better about the deal if some shipping costs for that order or a future order are also discounted. Then I hear nothing, for 10 days. Email again, hear nothing for 4 days, email again, hear nothing for 4 more days. Starting to wonder if I'm in a "do not reply to" list.

Note: I do know there is no "black hole", I apologize if sarcasm is inappropriate :)

I get the weekly emails of new designs, I often find 1 or 2 I like, and end up adding to my cart. When I hit checkout, I remember I should log in, since you have all my address details and my threadless points, but when I do, my shopping cart gets cleared out every time. Usually I quit, sometimes I go back and shop again for stuff, but I really wish Threadless worked like Amazon where stuff in your cart isn't lost when you log in at payment time.

I captured a short movie of this bug (and described it on my blog as well):
http://images.metafilter.com/threadle...

The first one shows adding to cart, logging in, then going to cart shows it is empty.
The second bit at the end shows a shirt in the cart, then logging in, and seeing the cart get emptied. I've noticed this bug for the last year or two and I think it'd result in a lot more sales if it was fixed.