I also ran into this issue May 30th, I was playing for an hour or so, and my friend came on, I joined him in the firing range, left shortly after to invite another friend. As soon as I got to the Lobby I got sent back to splash screen and it indicated that my account was banned. I received no email about a ban, and there is nothing in my ban history. I opened a case with EA and they told me "We checked the account you used to create this case but didn’t find any restrictions on it." Well no *.... then why do I still get the message. There is something going on here as I have never cheated, used macros, or anything of that nature. This is beyond frustrating as it seems EA reps just don't look into things deep enough or just don't care.