Cancel your Sercomtel subscription by mail
Sercomtel takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. The cancellation address on file for Sercomtel is in Londrina, Brazil.
Let Postbye cancel Sercomtel 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 Sercomtel.
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- 2 Sercomtel cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Sercomtel by mail
Collect the details you need
Start with the account number, the phone number or service address being cancelled and the name on the account, so the request to Sercomtel names the right account the first time.
Draft the request
Postbye writes the letter in Brazilian Portuguese from our Brazilian Portuguese template, because Sercomtel's address is in Brazil. It opens with the subject line “Assunto: Solicitação de cancelamento – [your name]” and asks Sercomtel to end the subscription, stop all further charges and confirm in writing.
Post it with proof of delivery
Mail the letter by certified mail to the Londrina address in the next section, and keep the tracking number.
Keep proof the letter arrived
File the receipt with the letter. A Sercomtel 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 Sercomtel cancellation letter goes
For a letter to Sercomtel, use Rua Professor João Cândido 555, 86010000 Londrina, Brazil.
The postcode 86010000 belongs to Paraná, Brazil, so this is where the envelope is delivered.
Your details go in a block headed by Titular da conta, Endereço de cobrança cadastrado and E-mail cadastrado, and the opening line is “A quem possa interessar,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Sercomtel, with the envelope wording
Before you cancel Sercomtel, 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 Sercomtel 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.
Sercomtel cancellation at a glance
- How Sercomtel accepts cancellations
- By mailed letter
- Mailing address on file
- Sercomtel Rua Professor João Cândido 555 86010000 Londrina Brazil
- Country
- Brazil
- Letter language
- Brazilian Portuguese (template pt-br)
- Category (from the company name)
- Phone & internet
- Added to the database
- July 29, 2026
- Data last checked
