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Where to send your Cerebrum IQ cancellation letter

Read the addresses on this page next to the full guide to cancelling Cerebrum IQ.

The addresses we hold

Where a cancellation letter to Cerebrum IQ should be sent: the verified Claymont address below, plus the other addresses on file, and how to write them on the envelope.

Where the letter goesMailing address

Cerebrum IQ2093 Philadelphia Pike#3129Claymont, DE 19703

Cerebrum IQ takes its post at this Delaware address (ZIP 19703).

How to address the envelope

  1. Copy the address exactly

    The envelope reads 2093 Philadelphia Pike, #3129, Claymont, DE 19703. Match the spacing and the box or street line exactly as printed.

  2. Add the return address

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

  3. Send it certified

    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 what the post office gives you

    Hold on to the letter copy, the receipt and the tracking page; the notice period (Cancel before renewal; all subscriptions auto-renew until cancelled) runs from the date on the record.

The letter to send

The letter below asks Cerebrum IQ 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.

Sample cancellation letter

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

[Date]

Cerebrum IQ 2093 Philadelphia Pike #3129 Claymont, DE 19703

To whom it may concern,

I am cancelling my account with Cerebrum IQ, 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.

I am giving notice under my agreement: Cancel before renewal; all subscriptions auto-renew until cancelled.

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 Cerebrum IQ 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 Cerebrum IQ