I need help please

well i was using some hacks this guy gave me on my noob, ive been using them fer around a week, then i logged off him close hack menu and switched to my main, then it said something about punkbuster kicking me off my main, i tried to log in again and it said unregistered user on my main, anyone help?
srry fer use of many commas lol

that happened to a mate.
was there a popup saying " account baned for either 0 or 1440 minutes" ?