Confira a fidelidade; caso contrário, pode pagar a multa de cancelamento.

Not exactly. In this kind of Brazilian Portuguese sentence, fidelidade usually means a minimum contract period, lock-in period, or commitment period.

So in contexts like phone plans, internet plans, gyms, or subscriptions, ter fidelidade means you are committed to stay for a certain time. If you cancel early, there may be a penalty.

So although fidelidade can literally relate to faithfulness/loyalty, in this sentence it is really a contract term.

Confira comes from the verb conferir, which here means to check or to verify.

In this sentence, Confira is an imperative form, so it is giving an instruction:

Confira a fidelidade = Check the contract term / Check whether there is a lock-in period

In Brazilian Portuguese, commands directed at você often use the present subjunctive form, so:

• conferir → confira

Because the verb is conferir, and its subjunctive stem is confir-:

• eu confiro
• que eu confira

That is why the command for você is confira.

This is a common pattern with -ir verbs:

• abrir → abra
• decidir → decida
• conferir → confira

So confira is the correct form.

Yes. Portuguese often leaves out words that are obvious from context.

Here, Confira does not explicitly say check it or check whether..., but that idea is understood. The full sense is something like:

• Check whether there is a commitment period
• Check the contract term
• Verify the fidelidade clause

So the sentence is natural even without a more explicit object.

Portuguese uses definite articles more often than English does.

So a fidelidade is natural even where English might simply say:

• check for a commitment period
• check the contract term

The article a does not necessarily mean the learner should translate it word-for-word as the every time. It often just sounds natural in Portuguese when referring to a known feature of a contract or service.

Caso contrário is a fixed expression meaning:

• otherwise
• if not
• if that is not the case

It introduces the consequence of the opposite situation.

So here:

• Confira a fidelidade; caso contrário... means something like:
• Check the contract term; otherwise...

It is a fairly common and slightly formal expression.

The semicolon separates two closely related parts:

1. Confira a fidelidade
2. caso contrário, pode pagar a multa de cancelamento

It works a bit like a stronger comma or a softer period. It helps show that the second part is the consequence connected to the first.

A comma is also common in less careful writing, but the semicolon makes the relationship especially clear.

Literally, pode pagar means can pay, but in this context it usually means:

• may have to pay
• could end up paying
• might be charged

It does not mean permission, as in you are allowed to pay.

So here pode pagar a multa de cancelamento suggests a possible consequence: if there is a commitment period and you cancel early, you may have to pay the cancellation penalty.

The subject is understood to be você.

Portuguese often omits subject pronouns when they are clear from context. So the sentence really means:

• você pode pagar a multa de cancelamento

But saying você is unnecessary here because the sentence is already clearly addressing the reader/listener.

Multa means fine, penalty, or penalty fee.
Cancelamento means cancellation.

So multa de cancelamento means:

• cancellation penalty
• cancellation fee
• early cancellation fee (depending on context)

The structure noun + de + noun is very common in Portuguese. English often turns that into a compound noun or adjective-like phrase.

Examples:

• taxa de inscrição = registration fee
• prazo de entrega = delivery deadline
• multa de cancelamento = cancellation penalty

Yes, depending on context. A very literal translation of multa is fine or penalty, but in natural English, companies often call this a cancellation fee.

The nuance is:

• multa sounds more like a penalty
• taxa sounds more like a neutral fee/charge

So if the company is charging you because you broke the contract early, multa is a strong and appropriate word in Portuguese.

Yes, caso contrário is somewhat formal or neutral-formal, but it is very common and natural.

Other possibilities include:

• senão
• do contrário

But caso contrário is especially common in warnings, instructions, and written notices like this one.

So in this sentence, it fits the tone well.

Yes, especially in writing or in customer-service language. It sounds natural in:

• contracts
• websites
• app messages
• telecom or subscription notices
• customer support instructions

In very casual speech, someone might rephrase it more conversationally, for example:

• Vê se tem fidelidade, senão você pode pagar multa de cancelamento.

But the original sentence is completely natural and standard.