If you were expelled, your relationship,with this university is likely terminated.
Family member here had his relationship,with a college terminated…because he has basically flunked out…twice. He was not given an option to return…but really…after two flunk outs…he didn’t need to return there!
You need to find out exactly what your status is. Have you been permanently expelled…with no option of returning…ever. Or what?
You mention you were given a chance other times…did you appeal dismissal another time?