After this buyer purchase the item on ebay and pay for it, I reminded him for a week that it will be an international import for him.
I sent him the info after I shipped, pay for all the shipping, and then he said "I do not have the money for import tax , therefore I will not be paying that. That was not part of the deal, I will refuse it and I will cancel order and expect a refund from you."

I managed to hold the bass guitar at the airport before it left the country. I then open a order cancellation on ebay with a partial refund (I am charging him for the shipping cost I paid). He claimed he doesn't know how to accept the cancellation case. After 10 days, he has no response in any medium and ebay still charges me full final value fees.