So while everyone can see that this is dumb, there is actually precedent for sending bills to companies for services that weren't rendered. If you can get them to sign for it, they are legally bound. There was a guy who was financing with his bank and he basically altered the contract(that they didn't expect him to read to begin with) to give him no spending limit, 0% interest, and a bunch of other stuff, and he sent it back for them to sign it. Because they actually didn't read it but signed it anyways, when it was taken to court he did win.