Cancel your Claro subscription by mail
Claro takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Our database has Claro's mailing address in CABA, Argentina.
Let Postbye cancel Claro 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 Claro.
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- 2 Claro cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Claro by mail
Note your account details
Before writing, collect the account number, the phone number or service address being cancelled and the name on the account. Claro can only act on a request it can match to an account.
Set out the request
Because Claro is dealt with in Latin American Spanish, the letter is written in Latin American Spanish (template es-419). Subject: “Asunto: Solicitud de cancelación – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Post the letter
Take the letter to the post office and ask for certified delivery to C1084AAQ CABA. Keep the tracking number it gives you.
File the delivery record
Delivery confirmation is your evidence that Claro was asked. Watch the next statement or two for any further Claro charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Claro cancellation letter goes
Claro lists Avenida de Mayo 878, C1084AAQ CABA, Argentina as its mailing address.
Copy the postal code C1084AAQ exactly: it is what routes the letter to CABA, Argentina.
The database also lists Rua Henri Dunant 780, 04709110 São Paulo, Brazil for Claro. Use the first address above unless your agreement names this one.
The letter greets the reader with “A quien corresponda:”; your own details sit under the labels Titular de la cuenta, Dirección de facturación registrada and Correo electrónico registrado.
Prefer to write it yourself? Use our letter template
Before you cancel Claro, check these
- If you are moving to another provider, keep the line active until the new service works, then cancel.
- Name the exact line or service address. Accounts with several lines can leave one of them running.
- Ask for a final bill in writing and return any rented equipment by tracked mail.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Claro 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.
Cancelling a phone or internet plan
Phone and internet providers tie cancellation to contracts, equipment balances and notice periods, so the request should name the exact line or service and ask for a final bill in writing.
A mailed letter is slower than a phone call but it is the version that proves what you asked for and when.
Claro cancellation at a glance
- How Claro accepts cancellations
- By mailed letter
- Mailing address on file
- Claro Avenida de Mayo 878 C1084AAQ CABA Argentina
- Second address on file
- Claro Rua Henri Dunant 780 04709110 São Paulo Brazil
- Country
- Argentina
- Letter language
- Latin American Spanish (template es-419)
- Category (from the company name)
- Phone & internet
- Added to the database
- July 29, 2026
- Data last checked
