ebay賣家的Global Shipping Program計算 - 海外購物

上星期在ebay上買了一箱二手玩具,重9.2磅
賣方的Global Shipping Program計算出來是42美元

昨天得標了一箱二手玩具,重量跟數量體積~怎麼看都不會比42美元那批多
可是賣方的Global Shipping Program計算出來卻是63美元

以下是他回復我的信件:

ok, I tried to get a new invoice for you, but the ebay international shipping
program is handled by a third party and I don't have any way to change that.
I get this message; " you can't send invoice for this order ‧

The item(s) will ship using the Global Shipping Program. As part of the
program, buyer directly pays international shipping and import charges to the
third-party shipping provider. The buyer will still be able to complete
checkout even if you don't send an invoice."

請問這個計算是依據賣家填了什麼資料嗎~
賣家有權選擇其他運輸方式嗎(不要使用gsp...)
我用ebay結標以後那個計算方式
出來結果是International Priority Shipping,37.63美元

落差好大呀...


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