Cancel your Cartao Universo subscription by mail
To end a Cartao Universo subscription you write to them: Cartao Universo handles cancellations by post. Letters to Cartao Universo go to Lisboa, Portugal.
Let Postbye cancel Cartao Universo 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 Cartao Universo.
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- 2 Cartao Universo cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Cartao Universo by mail
Collect the details you need
Check the name and email on the account and, if you have one, an account or customer number before anything else. A request that does not match the account on file at Cartao Universo is the easiest one to set aside.
Write your request
Postbye drafts the request in Portuguese, the language of Portugal, with “Assunto: Solicitação de Cancelamento – [your name]” as the subject line. It asks Cartao Universo to close the subscription, stop billing and confirm in writing.
Post it with proof of delivery
Send the letter to the Lisboa mailing address shown below by certified mail. Keep the tracking number safe.
Keep the delivery receipt
File the receipt with the letter. A Cartao Universo charge dated after delivery is the one to dispute, and these two documents are what you quote.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Cartao Universo cancellation letter goes
For a letter to Cartao Universo, use Avenida do Colégio Militar 37F, 1500-180 Lisboa, Portugal.
The envelope is going to Lisboa, Portugal, so the postcode 1500-180 must be on the front.
Inside, the salutation reads “A quem possa interessar,”, followed by your details under Titular da conta, Endereço de cobrança registrado and E-mail registrado.
Prefer to write it yourself? Use our letter template
Every address we hold for Cartao Universo, with the envelope wording
Before you cancel Cartao Universo, 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 Cartao Universo 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
Subscriptions renew automatically, and a written request is the clearest record that you asked to stop it before the next billing date.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Cartao Universo cancellation at a glance
- How Cartao Universo accepts cancellations
- By mailed letter
- Mailing address on file
- Cartao Universo Avenida do Colégio Militar 37F 1500-180 Lisboa Portugal
- Country
- Portugal
- Letter language
- Portuguese (template pt)
- Added to the database
- May 26, 2026
- Data last checked
