Where to send your Grok cancellation letter
Read the addresses on this page next to the full guide to cancelling Grok.
The addresses we hold
One place for Grok's mailing addresses: the Palo Alto delivery point for a cancellation letter first, then the rest of what the database holds, with envelope wording that matches.
Where the letter goesMailing address
GrokPage Mill Rd 1450Palo Alto 94304The head-office address for Grok, in Palo Alto. ZIP code 94304.
How to address the envelope
Write the address as printed
The front of the envelope carries Page Mill Rd 1450, Palo Alto 94304 and nothing else in the address block. Check the 94304 digit by digit before it goes in the post.
Put your own address on it
Your name and postal address go top-left on the front (or the back flap). If the letter cannot be delivered it comes back to you, which is itself evidence of the attempt.
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.
Keep what the post office gives you
Hold on to the letter copy, the receipt and the tracking page.
Your letter to Grok
The letter below asks Grok to end the account, stop further charges and confirm in writing. Put the account email, the plan or product name and the invoice or order number from your latest receipt in the bracketed places.
[Your name] [Your street address] [City, State ZIP] [Your email address]
[Date]
Grok Page Mill Rd 1450 Palo Alto 94304
To whom it may concern,
I am cancelling my account with Grok, 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]
Keep reading
The full guide to cancelling this company, our letter template and the postal guides.
Let Postbye cancel Grok 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.