I am not on autopay but do get email billing notices in addition to paper bills. The paper bills actually go straight in the recycle bin (Pet peeve of mine to companies that beg you to go paperless billing: Give me a discount, even $1 - just for the principle of the idea. Otherwise, keep buying paper...). I do look at the total dollar amount though and if it's out of the ordinary, then I look at the PDF version. I will catch it when a promotion or a discount they gave me expires - anything that causes the bill to increase.