Welcome to Just Answer.
It looks like it takes 2 days to get to iTunes and you have to approve or finalize it before it does: "Once your content is approved by our distribution team and finalized by you, we deliver your music to iTunes within 2 business days."
Did you just upload it today?
No, I uploaded it on Thursday
I emailed them to ask if there were any problems with the files, but they never answered
Did they give you an iTunes store account to manage your music?
Is the only option to wait for them, or is there a way to get it removed from iTunes on my own?
As far as I can tell, it's all managed through cdbaby
And they don't have 24 hour service so I can't get in touch with them via phone right now
Yes, unfortunately, if they didn't give you any kind of login for iTunes, you're stuck waiting for them.
Thanks for trying
No problem. Chances are, there won't be a ton of people downloading it right away, if you aren't promoting it.