Two incredibly dumb letters I just received from Verizon

Came home just now to find two actual papery-type letter thingamajigs in my mailbox, both from Verizon. I've just joined them from AT&T.
 
The first was to confirm my request to sign up for paperless billing. That's right, a paper letter to confirm my request to receive bills by email. They did not send an email confirmation to the email address I signed up with. Why bother with emails when you can simply chop down a tree?
 
The second was confirmation of my registration for "My Verizon," their online account service. 5 days ago, they sent me an email confirming this registration, and added that they would also send me a letter saying exactly the same thing in 3-5 days. So I wasn't that surprised by this one. It doesn't make it any less ridiculous however.
 
I'm on the brink of filling my mailbox with bricks like Kramer. Stop sending me this paper crap, I hate it and it's so unnecessary. Is this a union thing to protect mail room jobs or something?
 
 
 

You would think they would just give you a phone call.

I expect there may be rules (or even laws) requiring that certain documents be sent to customers in a manner which is considered proof of service. In most states the mail to a known address will qualify, but an email may not be considered reliable. Ever heard of spam filters or email spoofing? And of course the USPS and the resident of the address you gave them, will likely tell them you are not resident there if you used a false or outdated address for a lot less cost then sending a private dick out. In any case the law may not have caught up with the internet quite yet, and your cell service may just want to make sure that they have you by the legal short and curlies in the event a dispute arises in the future.