Devolución de tasas de importación Amazon

Me han llegado dos devoluciones de las tasas de importación de compras que hice ya hace varios meses. Saben a que se debe?

Hello,

We're writing to let you know we processed your refund of $65.60 for your Order 109-2380420-XXXXXX

This refund is for the following item(s):

Item: Motorola Moto 360 - Stone Grey Leather Smart Watch
Quantity: 3
ASIN: B00O0BRXBE
Reason for refund: Export fee reduced

Here's the breakdown of your refund for this item:

Import Fee Deposit Refund: $65.60

We'll apply your refund to the following payment method(s):

MasterCard Credit Card [expiring on 2/2019]: $65.60

We've processed a refund for the above order in the amount of $65.60. The refund should appear on your account in 2-3 days if issued to a credit card.
Refunds issued to a bank account typically take 7-10 days to reflect on the account balance.