Amazon.comからのrefund

4月にAmazon.comで購入したトリオレプロ
下のように表示価格が＄349で支払いが＄409.35だった．
Scarpa Men's Triolet Pro GTX Mountaineering,Orange,41 M EU /8 M US Men
Sold by Amazon Export Sales, Inc. (Amazon.com) $349.00
Item Subtotal: $349.00
Shipping & Handling: $11.98
Total Before Tax: $360.98
Import Fees Deposit: $48.37
Shipment Total: $409.35
  (JPY 34,648)
Paid by card: $409.35
  (JPY 34,648)

日本円で34648円だったので、そんなに割安感はなかったのだが、今日Amazon.comからrefundについてのメールがきた。
We're writing to let you know we processed your refund of JPY4,094 for your Order．

This refund is for the following item(s):
  Item: Scarpa Men's Triolet Pro GTX Mountaineering,Orange,41 M EU /8 M US Men
   Quantity: 1
   Reason for refund: Export fee reduced
   Here's the breakdown of your refund for this item:  Import Fee Deposit Refund: JPY4,094

34648-4094=30544円！
かなりの得した気分。

得した分、何を買おうかな…