I'm sorry to hear FedEx isn't reading the customs form correctly. You may want to clarify with them that corresponding harmonized code on the commercial invoice is for .999 fine silver. FedEx knows this.
Great, thanks for the tip. I talked to several FedEx people on the phone yesterday, none of whom seemed to know which side was up, so I'm waiting for a callback on Monday. Will let you know how it turns out!
Customs charges reversed, thanks again

I gave up on the morons an paid it, sonofab* I was told on the phone that I had to submit a written form detailing the error and they denied my appeal. Did you get it solved via the phone only or did it involve paperwork too?
Anything else Amagi can better do to avoid this? looking at another order and don't want to go through this again.
---ALSO, was browsing last night, no problems. And this afternoon there's no BTC option under the currencies that was there just last night, what gives?