The biggest piece of information I was given was, when I call in the future, I can ask for a US Customer Representative and while I hope I won't need to, if I call to Amazon I will be doing exactly that. The language barrier is a problem when it is not a canned, scriptable issue for them to take care of.
Very good news to know.
I prefer to do a chat instead, so I end up with a transcript of both sides of the conversation and hopefully avoid misunderstandings due to regional accents, etc.
I've always done chats for those same reasons. But if I could talk to easy-to-understand people, it might make the process go more quickly...