Here are some reasons :
For now Calladream's shipping partners are unable to ship orders to PO Boxes or APO/FPO military addresses.
So you will need to provide a street address. If a PO Box or APO/FPO military address is given, it will delay shipment of your items or your order will be canceled.
In some cases, there will be VAT or other taxes, like customs duties or fees levied by your destination country.
Shipping charge is decided by destination and products you ordered. Please add items into your shopcart , proceed to pay, you will see how much is the shipping fee before payment.