This page is not a joke, and it works at any hour.
To stop the Department's letters, email STOP to stop@departmentofeverythingisfine.com or text STOP and the reference at the top of your letter to (938) 777-0905. If you have the reference from the top of a letter, add it; if not, give the name and address the letters come to.
We stop at once, delete your name and address, and keep only a record that letters must never be sent to that address again. You will not receive another letter, and nobody needs to know you asked.
Someone who knows you bought a Subscription to Nothing as a novelty gift and gave us your name and address. The letters are a joke from a fictional department: they ask nothing of you and need no reply.
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