MarkOly - 8:02 pm on Feb 23, 2013 (gmt 0)

We called the merchant and said they should reinstate the charge. They seemed a bit surprised by the call, but said ok, but they wouldn't charge us for the shipping.

That was nice of you to do that. In ten+ years, I don't think I've ever had a customer return the extra shipment - or offer to pay for it. People think all online businesses are conglomerates with deep pockets. So it's okay to rip them off.