and they owe me $2.49.
Not only did the meter reading get goofed entirely, but the estimate they used for last month's $20 and change was incorrect too.
This month's actual usage was 5 decatherms for a total of $8.67. Last month's bill was corrected by -$11.16, leaving a balance of -$2.49 and a big Do Not Pay notation in the Amount Enclosed section of the "return this stub with payment" coupon.
I like it when utilities fix their mistakes and end up owing me money. I was half afraid the new bill would show a corrected "amount due" of $2,300 or something evile like that.