I haven't received my paper bill in the mail yet, but I was checking online the other night to see what I owed and it said something like -$27 and change, which I'd never seen before but figured it was some credit of overpayment over the last year (my bill is usually around $100-$115).

I just checked again online and it's now saying that the current balance due is $74.23, which I suppose tracks if they were attempting to credit my account $27 before the new bill came due? I have no idea why it's less, but I'll take it