Suitemates got me banned while i was on vacation!!!

Ok this really sucks right now. I went to florida on vacation and my account got unbanned last friday from a 2 week and i was going to just come back today and play like a normal person and mute everybody but i found out that over the weekend at college my suitemates got me banned off of it and I know it was them because before i left the cops came to our dorm because they smelled weed and then the kids got in alot of trouble and they thought it was me that told on them and i saw them post a threat to me on yik yak about snitches getting stitches so i know it was them who just went on my account over the weekend and started playing and then got me banned and that sucks because now the bullies get the last laugh and i'm back home now so is there anyway for them to track the IP my accoun was logged in on? they are still at the dorms