Hello @Seller_Zw8LsZUQSH440

Christine here from Amazon Forums.

These are additional fees UPS charges for deliveries to less accessible or remote areas. They can significantly increase the overall shipping cost.

While Amazon's systems are generally sophisticated, they may not always accurately predict all potential surcharges, especially for less common destinations.

Please know, that some surcharges are applied after the shipment is made, which can lead to these unexpected adjustments.

Also, you're correct that USPS might have been a more cost-effective option for this particular address. USPS often doesn't charge additional fees for remote areas.

I would recommend you to contact our Seller Support team to see if they can help you with a refund or credit.

The other option is for orders to less common destinations, consider manually reviewing shipping options before purchasing labels through Amazon.

Let me know if you have any other question about this topic.

Christine.