Sorry but I doubt begging for lowered declared value is going to go anywhere.
They could at least however put it at the correct price and make sure the documents are correct, I had some of mine marked as 500USD back when they cost 0,9BTC and BTC price was stuck in the 440 range. Then I've had one or two orders that were marked "computer game" instead of "computer game gateway" and I got slapped with customs fees in addition to VAT.