I'm banned from a server after being timed (and I WASN'T banned/kicked)

HELP ME!! ↴

So earlier this week, I was just chatting in a discord server one of my classmate owned. Randomly, he timed (We couldn't type, join vcs or anything really) me, and a few others from the server. I kept asking to be untimed, but he said no. So, I got impatient cause I was timed for about 24 hours and thought that if I left and rejoined, I would be untimed. I leave, and when I try to rejoin, it says I'm banned! Every link I've tried is valid (obviously) and it doesn't show up as invalid, just that I am banned. I thought it was an error at first, but it still didn't let me join, so I tried a bunch of things that might've fix the problem. Also, the server wasn't deleted so that's also not the problem.

Things I did:

• refreshing the page
• asking other people for different invite links
• waited for a few days and asking the owner if he or a co-owner/mod had banned me. (He respawned with a "no" and tried to check if he could help me. He couldn't.)
• joining the server on different accounts (all to no success)

I don't know what else to do! I also submitted a request, hoping they could help me, but I'm not sure they can. Everything else works fine, but it's just this one problem! I do have alts but I know they aren't the ones banned because I only use my main account. He also said he checked and it said I wasn't banned either. Also, it does show that I left, my tag is not on the member's list so there is no "ghost" version of me. I will ask the classmate to clear all bans in case (they probably don't have any bans).

From the request I submitted earlier, they say I might've been blacklisted (I'll ask him if I was), someone who lives in the same household got banned I probably would be too (will ask about this too since I have a brother who's friends with him).