I just pay on-line now too.
But I don't like the way they hide these little announcements. Our phone company (the ghastly AllTel) pulled this one, and that month I accidently put the water company check in AllTel's envelope and vice versa. The water company politely returned AllTel's check; AllTel "electronically" cashed the water company's!
Our land line is through the cable company now.