Jika transaksi ditolak, hubungi bank segera.

Jika means if.

It is very similar to kalau, but there is a difference in tone:

• jika = more formal, common in notices, instructions, and writing
• kalau = more conversational, common in everyday speech

So in a sentence like Jika transaksi ditolak, hubungi bank segera, jika sounds appropriate because this is the kind of language you might see in banking or customer-service instructions.

Malay does not normally use articles like a, an, or the.

So:

• transaksi can mean a transaction or the transaction
• bank can mean a bank or the bank

The exact meaning comes from context. In this sentence, the context makes it clear that it means something like the transaction and the bank.

Ditolak comes from the root tolak, which often means push, reject, or decline, depending on context.

In this sentence, ditolak means rejected or declined.

So:

• tolak = reject / push away
• ditolak = be rejected / is rejected / has been rejected, depending on context

With transaksi, the natural meaning is the transaction is declined/rejected.

The prefix di- usually marks the passive voice in Malay.

So:

• menolak = to reject
• ditolak = to be rejected

In English, the sentence is If the transaction is rejected... In Malay, that passive idea is shown by di- in ditolak.

This is very common in formal instructions, especially when the thing affected is more important than the person doing the action.

Malay verbs do not usually mark tense the way English verbs do.

So ditolak by itself does not tell you whether it is:

• is rejected
• was rejected
• has been rejected

The time is understood from context.

In this sentence, because it is an instruction about what to do in that situation, English usually translates it as if the transaction is rejected or if the transaction is declined.

Malay often leaves out the subject when it is obvious.

Here, hubungi is an instruction, so the understood subject is you.

So:

• Hubungi bank segera = Contact the bank immediately

Malay does this very often in commands, notices, and instructions.

Menghubungi is the normal dictionary-style active verb meaning to contact.

But in commands, Malay often uses the verb in an imperative form instead of the full meN- form.

So:

• menghubungi bank = to contact the bank
• hubungi bank! = contact the bank!

This is very normal. In instructions and warnings, the imperative form is short and direct.

The suffix -i is part of the verb form hubungi, and it often helps make the verb transitive, especially when the action is directed at a place, person, or target.

In practice, for learners, the most useful thing is to learn hubungi as the standard command form meaning:

• contact
• get in touch with

So hubungi bank means contact the bank.

You do not need to translate -i separately every time, but it is good to recognize that it is part of the verb form.

Because hubungi is a direct transitive verb in Malay.

In English, we say:

• contact the bank
• but also sometimes get in touch with the bank

Malay uses the direct-object pattern here:

• hubungi bank

So bank is the object of the verb, and no preposition is needed.

Segera means immediately, at once, or without delay.

In hubungi bank segera, it comes after the object:

• hubungi = contact
• bank = the bank
• segera = immediately

This placement is natural in Malay. You may also see slightly different word orders in other sentences, but this one is very standard for instructions.

The comma separates the conditional part from the main instruction:

• Jika transaksi ditolak = if the transaction is rejected
• hubungi bank segera = contact the bank immediately

This is similar to English punctuation in sentences like:

• If the transaction is declined, contact the bank immediately.

The comma helps readability, especially in formal written Malay.

It sounds formal to neutral, which fits a banking or customer-service message.

The formal feel comes from things like:

• jika instead of kalau
• the passive ditolak
• the concise command style hubungi bank segera

A more casual spoken version might be something like:

• Kalau transaksi ditolak, cepat hubungi bank.

But for official instructions, the original sentence is very natural.