. . .and this is the problem with email. It rarely works to here a light hearted comment in text, but on the phone, likely we would have all thought it was fine.
I'm not sure about the details of your order, but often gun makers have higher finish costs, even if only doing half. They did hear you and quote you. Now you don't like the quote and want to chip away at the message.
Once an email is misunderstood, a phone call would be best.
As for throwing this out there and getting a bunch of people to rag on their CS, why bother. You ought to be thrilled you emailed and received a response from an American.