Railyard reset
The Rail Yard resets every Tuesday, so most likely just a slight hiccup.
Forum Discussion
There's several of us this has happened to, with no good response from EA. You should try contacting them too. I'm still waiting to hear back from a specialist.
http://forum.ea.com/eaforum/posts/list/10356733.page
http://forum.ea.com/eaforum/posts/list/10356733.page
