Kalau Anda membayar biaya hotel dengan kartu debit, pastikan saldonya cukup sebelum check-in.

Kalau means if. It introduces a condition:

• Kalau Anda membayar biaya hotel dengan kartu debit = If you pay the hotel fee with a debit card

In everyday Indonesian, kalau is very common and natural in speech and writing. A more formal alternative is jika. In this sentence, kalau sounds normal and conversational.

Bayar is the base word meaning pay or payment depending on context.

Membayar is the verb form with the meN- prefix, and it means to pay.

So:

• bayar = base form
• membayar = to pay

In a full sentence like this, membayar is the standard form for the active verb:

• Anda membayar = you pay

You may hear bayar in casual speech, but membayar is more complete and standard.

Biaya means cost, fee, or expense.

So biaya hotel literally means hotel cost/fee. In this sentence, it refers to the amount you need to pay the hotel.

A learner might expect something like:

• tagihan hotel = hotel bill
• biaya menginap = lodging cost / cost of staying

Those are also possible in other contexts. Biaya hotel is understandable and natural enough here, especially when talking about paying the hotel.

Dengan usually means with or using.

Here it shows the means or instrument used to pay:

• dengan kartu debit = with/by using a debit card

This is very common Indonesian structure:

• menulis dengan pena = write with a pen
• pergi dengan mobil = go by car
• membayar dengan kartu debit = pay with a debit card

Anda is the polite word for you. It is traditionally written with a capital A as a mark of respect.

So:

• Anda = polite/formal you

It is common in instructions, notices, customer service language, and formal writing. In more casual Indonesian, people often use other pronouns depending on context, such as kamu, Anda, Bapak/Ibu, or sometimes no pronoun at all.

Pastikan is an imperative form, meaning make sure.

It comes from pasti (certain/sure) and functions here as a command or instruction:

• pastikan ... = make sure ...

Compare:

• Anda harus memastikan... = You must ensure...
• Pastikan... = Make sure...

Because this sentence is giving advice or an instruction, pastikan is the natural choice.

Saldo means balance, usually a bank or account balance.

Saldonya = the balance / its balance / your balance depending on context.

The suffix -nya here makes the noun more definite and refers to the relevant balance already understood from the situation—in this case, the balance of the debit-card-linked account.

So:

• saldo = balance
• saldonya = the balance / its balance

In English, we might say make sure your balance is enough, but Indonesian often uses -nya where English would use your or the.

Cukup means enough or sufficient.

In pastikan saldonya cukup, the adjective cukup is enough by itself because the thing being described is already clear:

• saldonya cukup = the balance is enough / sufficient

Indonesian often leaves out words that English might spell out more explicitly. The full idea is something like:

• pastikan saldonya cukup untuk membayar biaya hotel
  = make sure the balance is enough to pay the hotel fee

But that extra part is unnecessary because the context already makes it obvious.

The comma separates the if-clause from the main instruction.

Structure:

• Kalau Anda membayar biaya hotel dengan kartu debit,
  conditional part
• pastikan saldonya cukup sebelum check-in.
  main clause

This is similar to English:

• If you pay the hotel fee with a debit card, make sure the balance is sufficient before check-in.

The comma helps readability and is very normal here.

Sebelum means before.

After sebelum, Indonesian can use a noun, an event, or a verb phrase depending on context. Here, check-in is treated as the event:

• sebelum check-in = before check-in / before checking in

Indonesian often allows this kind of compact expression without adding another verb like melakukan.

A fuller version could be:

• sebelum melakukan check-in

But that sounds more formal and less concise. Sebelum check-in is natural and common.

It is a borrowed term and is very commonly used in Indonesian, especially in travel, hotels, and airports.

You may also see:

• cek in
• check in
• check-in

In modern usage, English-derived travel terms are very common in Indonesian. So this sentence sounds natural, especially in hotel-related language.

Yes.

These all can mean if, but they differ slightly in tone:

• kalau = common, everyday, natural
• jika = more formal
• bila = also formal/literary, sometimes softer in tone

So these are all possible:

• Kalau Anda membayar...
• Jika Anda membayar...
• Bila Anda membayar...

The original sentence sounds like practical advice for customers, so kalau works very well.

Not in the same way.

• cukup = enough, sufficient
• mencukupi = to be sufficient for / to suffice / to cover

In this sentence, cukup is the simplest and most natural adjective:

• pastikan saldonya cukup = make sure the balance is enough

If you used mencukupi, the structure would normally change, for example:

• pastikan saldo Anda mencukupi untuk biaya hotel
  = make sure your balance is sufficient to cover the hotel fee

So mencukupi is possible, but not as a direct one-word swap without adjusting the sentence.

It is polite and fairly neutral-formal.

Clues:

• Anda is polite
• pastikan sounds like an instruction or advisory notice
• the whole sentence sounds like something you might see in customer guidance, hotel information, or travel advice

It is not slangy or casual. It is appropriate for public-facing communication.