" Ahh, but Sean did make a mistake, he agreed to sell to a buyer in South America.
I have shipped many items all over the world, but I have never shipped electronics or speakers out of North America. I'll ship cables, cords, fuses, outlets, phono cartridges, etc., anywhere. When YOU put yourself in a difficult position, YOU should assume some responsibility.
That is my take, though I see that it is unpopular here. It seems there are some shady sellers here. "
First, the OP made no mistake. He didn't make an international sale. He made an agreement with someone, took payment on the amp and shipped it to Miami. You're letting the story cloud your judgment as to what really happened.
What the buyer did with the amp once it got to Miami has nothing to do with anything. How could the sellers liability go beyond that in any way? The story is irrelevant. Only what took place is. What if some college kids father in Canada bought an amp listed on AG in California and shipped it to his son at the University of Miami for his birthday? The same exact thing took place even though the story sounds different. Either way it doesn't qualify as an international sale. That's the whole reason the buyer had the amp sent to Miami in the first place. He didn't want to make an international sale with someone he didn't know. Better to send it to a friend or family member in Miami that knows the rules for whatever country it was sent to.
This has absolutely nothing with my opinion or your opinion. Only the facts matter. The story has nothing to do with anything. Also, I know you mean well, but when you quoted AG's policy, you mislabeled it. If you read the quote, AG says they're tips. Tips are not policy, and policy may not be law. So if the OP decides not to refund the sellers money first, he disregarded a tip from AG, and nothing more.