Consumer Law
Consumer Law: wrongful credit blacklisting, canceled flights, and charges you do not recognize
Your name blacklisted over a debt you do not recognize, a flight canceled without assistance, a bill with charges you never agreed to, a product that keeps going back for repair. The review starts from what was recorded in your dealings with the company.
The chat opens with a ready-made message, which you can edit before sending.
- First contact via WhatsApp
- In person in Belém/PA or by video call
- Professional confidentiality from the first conversation

Do any of these situations sound familiar?
- Your name was added to a credit blacklist over a debt you do not recognize or have already paid.
- Your flight was canceled or delayed, and the airline did not offer proper rebooking or assistance.
- Your bill includes charges, fees, or price increases you did not agree to.
- The service you contracted was interrupted or delivered differently from what was agreed.
- The product turned out to be defective and the problem was not fixed within the legal time frame.
If any of them resembles what you are going through, tell us what happened. The team will point out where to start.
Message us on WhatsAppDocuments and records help reconstruct the consumer relationship.
An entry in a credit-default registry with no contract to justify it, a flight canceled without adequate rebooking, a charge that does not match the service contracted, a defective product still under warranty. These are different problems with the same origin: the supplier failed to deliver what the consumer relationship called for. Brazil’s Consumer Protection Code (Código de Defesa do Consumidor) is the benchmark for this analysis, including with respect to financial consequences and, where they exist, non-financial ones.
The process begins with an account of what happened and the gathering of what was recorded: the contract, bills, the credit registry report, the boarding pass, the invoice, customer service ticket numbers, and messages exchanged with the company. This material shows whether there was a service failure or a product defect, and determines whether the route involves administrative dealings with the supplier or going to court.
Areas of work
When the supplier does not deliver what it promised.
Each area starts from a specific failure by the supplier. Before going to court, what has already been attempted with the company usually carries weight: a complaint filed, a ticket number kept, a response received — or the lack of one.
Wrongful listing in credit-default registries
Who added the name, based on what debt, and whether prior notice was given. Once these questions are answered, the regularity of the listing is assessed, along with whether removal of the entry and a claim for redress are available.
Flight cancellations and delays
A canceled or delayed flight, or a missed connection. The waiting time, the rebooking and assistance offered by the airline, and what the travel documents show are weighed in light of the regulations applicable to the sector.
Service failures
Interruptions, services performed outside what was contracted, and customer service that does not solve the problem. The contract, complaint records, and the concrete impact on the consumer define what can be demanded.
Improper charges and disputed bills
Amounts charged without a contract, duplicate fees, and undisclosed price increases are checked line by line, comparing the bills and payment history with the terms actually agreed.
Product defects and nonconformities
A product that is defective, keeps going back for repair, or does not match the advertised standard. The applicable warranty, any technical reports, and the legal deadline the supplier has to fix the defect are all taken into account.
What happens after you send your message.
You tell us what happened
On WhatsApp, a short summary is enough: what happened and since when. There is no need to send documents at this first stage.
The team guides the review
The firm tells you which documents to gather and schedules the review meeting, in person in Belém/PA or by video call.
You learn the possible paths
With the documents in hand, the firm explains the available alternatives, their risks, and the steps involved in each one. The decision to move forward is yours.
What helps to have at hand
- Contract, terms of service, or invoice
- Bills and payment receipts
- Customer service ticket numbers
- Screenshots, emails, and messages exchanged with the company
- Credit bureau report or flight ticket, depending on the case
Missing something? Send the message anyway: the list is adjusted to your case.
Message us on WhatsApp
Who assists you
MSC Advocacia — Melo Souza Cunha Advocacia e Consultoria — was founded by attorney Tainá Cunha (OAB/PA nº 36.711) and is based in Belém/PA, Brazil. Nationwide practice, with in-person and video call appointments.
Ed. EvolutionUmarizal, Belém/PA
About the firmFrequently asked questions about Consumer Law.
The starting point is the credit registry report, which shows who requested the listing. With that report, the contract — if there is one — and proof of payment, it is possible to check whether the debt has a basis and whether the prior notice that must precede the listing was given. Only then is the appropriate measure, administrative or judicial, defined.
The reason given by the airline, the waiting time until a solution was offered, the rebooking offered, and the material assistance provided during the wait. Added to these are the expenses incurred and commitments that were demonstrably missed. Each of these points is compared with the sector’s regulations and the travel documents available.
The contract or standard-form agreement, bills, proof of payment, customer service ticket numbers, and messages exchanged with the supplier. Where available, also technical reports, airline tickets, or the credit registry report. The list changes depending on the type of problem reported, and keeping ticket numbers helps reconstruct what was requested and when.
Want to discuss a consumer issue?
Describing what was contracted, what actually happened, and on what date helps pinpoint the problem.