Pepco Envelopes Snafu

We pay all of our bills on line unless it is not possible. It beats having to use envelopes, stamps, and address stickers. So when I got the usual Pepco Electric bill a week or so ago, I immediately paid for it on line. This week we received a strange telephone call from Pepco. I thought it was a crank call and didn't respond to it. Then we received a letter in the mail from Pepco yesterday. In it was a note of explanation about how they inadvertently did not include the remittance envelope in the last bill and that an envelope was now enclosed to submit your payment in. All I could think of was what a waste of time, paper, and money it was to resend every Pepco customer another letter about their bill. It's not like this sort of thing never happens, and I am sure for some people this is totally not acceptable. If I didn't get an envelope, I would then just take one of my own envelopes and send it along without a lot of hassle. So what did I do with this letter and envelope? Throw it in the garbage. I didn't even miss the fact that we didn't get one in the first place.