So I used to make songs on yt, I only made 2 and a slowed + reverbed version of them, but anyways I was on my alt trying to subscribe to my main account and I saw this user who kind of just poorly downloaded my videos and re-uploaded them checked it out, there posts tab on there yt is literally just the one post I made on my channel and a few other random crap. They're profile is also the same thing, it was just my logo but with a FlipaClip text font on it (I'm not even joking). So my only problem is that they posted them after I deleted those videos and I never paid to copyright them. I don't want to take this to court or anything too serious, I just want it taken down, I'll let you know updates, but I don't really know what to do, like if I should contact YouTube help or not.
Added Notes:
(Sorry for my grammar, and also I can prove I own it I have the original song files on my PC)
(I'm also not a big channel I only have 120ish subs so I don't know who it is, but I'll let you know updates if I can)