Time Flies

OK, I was so mad at AT&T because they sent me an email saying I hadn't paid my mobile bill.  Oh, yes I did.  It was right in my checkbook and there was a confirmation on my phone.
I called and finally got a real person and asked her why in the world I would get a bill when I always pay on about the same day every month.  I said look at my history.  I always pay on time.  See in August?  See in September?  Why am I suddenly late??  WTF????????( I didn't say that but I was thinking it)  Now here's the clincher.  And then I say Why can't I just pay on October 7?
A little silence met my tirade.  Ma'am she says it is October  It's the 18th.
OMG!!!!!!!!!!!!!!
I said I'll call the "pay now" number.  Thanks.
I'm sure I gave her the laugh of the day.
See what I mean?  Time flies.