Got an account locked email literally as I am writing this but my account isn't locked. I had a problem today. I had an RAF person I was planning on leveling up with, his card was declined according to the blizzard rep and my account was locked temporarily. It was already unlocked.
All my gold wasn't taken though, it's like completely random amounts were taken from each of my characters. Some toons left with like 5k, some left with 1k, some only with like 300g. This is the weirdest thing that has ever happened to me.