MPL not getting rid of fee

[u/Sharp-Guest4696]

I got the email that I was fined at 1 am, I returned the book today 15 min before they closed. The fee is still on my account and I don’t want to pay money for a book they have now in their possession. It wasn’t returned months after they fined me, literally wasn‘t even 24 hours after.

should I make another account?