I need urgent help please! I have UPS, USPS, Flat Rate, and Store pickup (local delivery) set up on my site. When you check out it shows the diff shipping costs. You can pick any of them but when you click continue and it shows your subtotal it only shows the subtotal cost and taxes. it is not adding the cost of shipping. I have no idea what could be causing this but have already had 2 orders come through that checked out and selected USPS and were never charged for it.