I got dismissed
If the school did not allow you the process provided by the school's administrative appeal process (grievance procedure), then you MAY have a right to go into court for an order compelling the court to set aside the expulsion and give you the process that was denied (potentially leading to a new and different order or expulsion based on full application of the process). Whether you are entitled to such a judicial order depends on (1) whether you complied with all of the pre-requisites for invoking the procedure, most importantly the time limits; whether the process that was afforded to you is legally sufficient to constitute "substantial compliance" with that process. These are questions of fact and subject to threshold determination by the court.
In all events, if you have been expelled, you are aware of the multiple and severe disabilities that accrue from that. You really need to consult with an attorney who can review the specifics of your school's admin process and determine whether you have any rights or recourse at this point.
Good luck to you.
The thing is I don't know if there was actually a proceeding. Dean said the committee met and reccomendation was sent but I was not informed about it. And obviously I was not present during the proceeding to present my case. The only thing I got out of the grievance process is a 4 minute phone call from the "committee chairperson."