You can't "Take her to court." She is a minor, and has no money, so nothing to sue for.

Without medical records or eye witness reports, proving a TBI from when you were young is going to be difficult. But in my experience your PTSD...

This sounds like a fairly common Internet scam. Probably no girl and when you make the payment they have your banking info.

Of course you will get in trouble. You are an adult, and she is a child, whose mom doesn't want you near her daughter. What part of that makes...

I think you have a good chance at getting it done.

You can sue, but all you are entitled to is a refund or exchange.

It probably will. It is what is called being titled.

A longshot, but possible. Speak to an experienced military law attorney.

As you were thankfully not injured there is nothing to sue them for.

Not a legal issue. Change the password.