So if you're sure in your own mind that your team played square, then give these people the power to ruin it? The singles player didn't demand a an official while the match was going on. After she lost, probably her captain said, "Why'd you lose?", then, to save face, she probably said something about bad line calls and that led to the other stuff. It's too little, too late. Yes, she should have been a good loser. Sounds like they were overly competititve. But as long as they didn't steal credit cards or rough up one of you in the parking lot, this ought to be something you just shake off. Most people are more pleasant than this, but people can also be alot worse than this. Keep it in perspective.