Hello.
But the address does exist.
Never seen a mailbox for 2 or more addresses?
How about a house with 2 or more mailboxes at the front door?
Normally this is done for a garage apartment or somebody running a business out of their home or garage but it is not all that uncommon.
In fact, you can do a change of address with this.
Simply put up another mailbox or mark the one already there with ALL addresses and you have it.
I have also used transmitter sites as a valid address, just put the mailbox where the mailman can easily get to it from his route, works well with American Tower sites, have them log you in as a tech to a site once and you will be given the address of whatever tower you need access to.
I do this as freight carriers want a correct address to deliver to and I have no way of transporting a transmitter hut. ;)
But, as long as you are not trying any form of fraud you can do this.
Remember, the goal is to stop them from sending stuff to you, not fail to pay a bill.