Cancel your City of Hope subscription by mail
City of Hope takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Letters to City of Hope go to Duarte, United States.
Let Postbye cancel City of Hope 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.
Money-back guarantee within 10 business days.
Postbye is not affiliated with City of Hope.
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- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel City of Hope by mail
Note your account details
You will need the name and email on the account and, if you have one, an account or customer number. Use exactly the details City of Hope holds, so the request can be matched to your account.
Prepare the letter
Your Postbye letter to City of Hope asks for three things: the account closed, no further charges and a written confirmation, all under “Subject: Subscription termination – City of Hope”. It comes from our English template.
Post it with proof of delivery
Send it certified to Duarte, United States, copying the address from the next section letter for letter, and keep the receipt slip.
Keep the proof of delivery
It shows the date City of Hope received your letter. Check your next statement: no City of Hope charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your City of Hope cancellation letter goes
Written requests to City of Hope go to 1500 Duarte Road, Duarte, CA 91010-3012.
Duarte, California 91010-3012 is a United States address, so ordinary certified mail reaches it.
Your name, address and email appear in a short block labelled Name, Address and E-mail, under the greeting “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Every address we hold for City of Hope, with the envelope wording
Before you cancel City of Hope, check these
- Write well before the next billing date. A request that arrives after it can leave one more charge on your statement.
- If an app store or phone carrier bills you, the company cannot cancel it. Cancel with that partner as well.
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel City of Hope 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.
How cancelling by mail works
Most subscriptions keep billing until someone tells the company to stop, and a dated letter is proof that somebody did.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
City of Hope cancellation at a glance
- How City of Hope accepts cancellations
- By mailed letter
- Mailing address on file
- City of Hope 1500 Duarte Road Duarte, CA 91010-3012
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- October 13, 2026
- Data last checked
