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Where to send your Smithsonian National Museum of the American Indian (membership) cancellation letter

Read the addresses on this page next to the full guide to cancelling Smithsonian National Museum of the American Indian (membership).

The addresses we hold

This page shows every mailing address we hold for Smithsonian National Museum of the American Indian (membership), starting with the one a cancellation letter should go to in Washington, 20026-3473, and how to address the envelope so it arrives without a query.

Where the letter goesMailing address

Smithsonian National Museum of the American Indian (membership)PO Box 23473Washington, DC 20026-3473

The head-office address for Smithsonian National Museum of the American Indian (membership), in the District of Columbia. ZIP code 20026-3473.

How to address the envelope

  1. Write the address as printed

    One address block, copied whole: PO Box 23473, Washington, DC 20026-3473. If any line differs from the card above, start the envelope again.

  2. Put your own address on it

    Print your return address in the top-left corner. Without it, an undeliverable letter is simply lost instead of returned to you.

  3. Certified mail, not a courier

    Ask at the counter for the certified service with a return receipt: the fee is on top of the postage, the receipt is postmarked, and the article number traces the delivery.

  4. Keep the proof together

    Hold on to the letter copy, the receipt and the tracking page.

The cancellation letter

What the letter to Smithsonian National Museum of the American Indian (membership) says: one clear cancellation request, no reasons given, your member number, the name on the membership and the renewal date shown on your latest invoice quoted, and a request for written confirmation.

Sample cancellation letter

[Your name] [Your street address] [City, State ZIP] [Your email address]

[Date]

Smithsonian National Museum of the American Indian (membership) PO Box 23473 Washington, DC 20026-3473

To whom it may concern,

I am cancelling my account with Smithsonian National Museum of the American Indian (membership), account or member number [number], with effect from [date or "immediately"]. Please end every add-on and linked plan on this account at the same time.

Please stop all future charges to my payment method, remove my stored payment details, and send written confirmation of the cancellation and its effective date to [your email address].

Sincerely, [Signature] [Your printed name]

Let Postbye cancel Smithsonian National Museum of the American Indian (membership) for you

We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.

Cancel Smithsonian National Museum of the American Indian (membership)