Cancel your Whitebook subscription by mail
To end a Whitebook subscription you write to them: Whitebook handles cancellations by post. Post for Whitebook is handled in Rio de Janeiro, Brazil, which is where your letter is headed.
Let Postbye cancel Whitebook 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 Whitebook.
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- 2 Whitebook cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Whitebook by mail
Start with your account details
Have the name and email on the account and, if you have one, an account or customer number to hand. The details in the letter need to match what Whitebook has on file.
Draft the request
Whitebook is based in Brazil, so the letter goes out in Brazilian Portuguese, built from our Brazilian Portuguese template. Subject line: “Assunto: Solicitação de cancelamento – [your name]”. It asks for the subscription to end, for further charges to stop and for written confirmation.
Send the letter by certified mail
Send it certified to Rio de Janeiro, Brazil, copying the address from the next section letter for letter, and keep the receipt slip.
Save the tracking record
The receipt dates your request. Look at your next statement for any Whitebook charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Whitebook cancellation letter goes
For a letter to Whitebook, use Rua Marquês de Pombal 25, 20230240 Rio de Janeiro, Brazil.
Rio de Janeiro is the delivery town, Brazil; the postal code to quote is 20230240.
The letter is addressed “A quem possa interessar,” and its details block uses the labels Titular da conta, Endereço de cobrança cadastrado and E-mail cadastrado.
Prefer to write it yourself? Use our letter template
Every address we hold for Whitebook, with the envelope wording
Before you cancel Whitebook, check these
- Look for annual or multi-month plans. A plan paid in advance usually runs to the end of the period you paid for.
- 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.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Whitebook 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.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
Whitebook cancellation at a glance
- How Whitebook accepts cancellations
- By mailed letter
- Mailing address on file
- Whitebook Rua Marquês de Pombal 25 20230240 Rio de Janeiro Brazil
- Country
- Brazil
- Letter language
- Brazilian Portuguese (template pt-br)
- Added to the database
- June 19, 2026
- Data last checked
