Khidmat pelanggan menyekat kad saya selepas transaksi tanpa kebenaran.

Khidmat pelanggan means customer service.

Malay often puts the main noun first and the describing noun after it. So:

• khidmat = service
• pelanggan = customer

Literally, it is something like service customer, but in natural English we say customer service.

This noun order is very common in Malay:

• rumah sakit (older/Indonesian-style pattern) = hospital
• kad kredit = credit card
• pusat bandar = city center

So khidmat pelanggan is just the normal Malay way to say customer service.

Sekat is the basic root word meaning block or stop.

Menyekat is the active verb form built from that root. In this sentence, it means to block / blocked.

Malay often uses the meN- prefix to form active verbs:

• baca → membaca = to read
• tulis → menulis = to write
• sekat → menyekat = to block

There is also a spelling change here:

• root: sekat
• with meN- prefix: menyekat

This happens because the initial s of the root often drops when meN- is added.

So menyekat is the normal active-voice form meaning blocked or is blocking, depending on context.

Malay verbs usually do not change for tense the way English verbs do.

So menyekat can mean:

• blocks
• is blocking
• blocked

The time is usually understood from context or from time words.

In this sentence, selepas transaksi tanpa kebenaran (after an unauthorized transaction) makes it clear that the blocking happened after something else, so English naturally translates it as a past event: blocked.

If you wanted to make the past/completed sense more explicit in Malay, you could add words like:

• telah = already / has
• sudah = already

For example:

• Khidmat pelanggan telah menyekat kad saya...

But the original sentence is already perfectly natural without them.

In Malay, possessors usually come after the noun.

So:

• kad saya = my card
• rumah saya = my house
• nama saya = my name

This is the normal Malay pattern:

• noun + possessor

So kad saya literally looks like card my, but it means my card.

Selepas means after.

It introduces something that happened later than another event.

In this sentence:

• selepas transaksi tanpa kebenaran = after an unauthorized transaction

Other similar words include:

• selepas = after
• sesudah = after
• lepas = after / once after / also "to be free" in other contexts

Selepas is a standard and clear choice here.

Literally, tanpa kebenaran means without permission or without authorization.

Breakdown:

• tanpa = without
• kebenaran = permission, approval, authorization

So:

• transaksi tanpa kebenaran = unauthorized transaction
• more literally: transaction without authorization

This is a very natural way in Malay to express what English often turns into an adjective like unauthorized.

Malay often prefers a phrase where English might use a single adjective.

So instead of one word meaning exactly unauthorized, Malay commonly says:

• tanpa kebenaran = without authorization
• tidak sah = invalid / not valid
• haram = forbidden/illegal in some contexts, but not appropriate here

For banking or card use, transaksi tanpa kebenaran is a very natural and standard expression.

So even though English says unauthorized transaction, Malay often expresses the same idea with:

• noun + tanpa kebenaran

Malay generally does not use articles like English the, a, and an.

So:

• kad saya can mean my card
• transaksi can mean a transaction or the transaction, depending on context

English needs articles, but Malay usually leaves them out.

That means:

• transaksi tanpa kebenaran could be understood as an unauthorized transaction or the unauthorized transaction, depending on the situation.

The context tells you which one makes most sense.

It is best understood as customer service as a service function, team, or department.

Malay nouns usually do not force you to mark singular/plural the same way English does. So khidmat pelanggan does not tell you by itself whether:

• one staff member did it
• the customer service team did it
• the department did it

In English, we often say customer service blocked my card even though customer service is not literally one person. Malay works similarly here.

The sentence follows a very common Malay order:

• Khidmat pelanggan = subject
• menyekat = verb
• kad saya = object
• selepas transaksi tanpa kebenaran = time/circumstantial phrase

So the structure is:

Subject + Verb + Object + Additional information

That is very similar to English:

• Customer service blocked my card after an unauthorized transaction.

Because of that, this sentence is quite straightforward for English speakers once the vocabulary is clear.

Yes. Malay uses passive forms quite often.

An active version is:

• Khidmat pelanggan menyekat kad saya selepas transaksi tanpa kebenaran.

A passive version could be:

• Kad saya disekat oleh khidmat pelanggan selepas transaksi tanpa kebenaran.

Breakdown:

• kad saya = my card
• disekat = was blocked / is blocked
• oleh = by
• khidmat pelanggan = customer service

That means:

• My card was blocked by customer service after an unauthorized transaction.

Both are grammatical. The original sentence is just the active version.

No. Another very common option is perkhidmatan pelanggan.

Both can mean customer service:

• khidmat pelanggan
• perkhidmatan pelanggan

In many contexts, perkhidmatan pelanggan may sound a little more formal or institutional, while khidmat pelanggan is also very common and natural.

So you may see either:

• Hubungi khidmat pelanggan
• Hubungi perkhidmatan pelanggan

Both mean Contact customer service.

Malay nouns usually do not have a separate plural form the way English does.

So transaksi can mean:

• transaction
• transactions

If the context already makes the number clear, Malay often leaves it as just transaksi.

If you really want to emphasize plural, Malay can use reduplication:

• transaksi-transaksi = transactions

But in many normal sentences, that would sound unnecessary.

So in your sentence, transaksi tanpa kebenaran is naturally understood from context, and English chooses an unauthorized transaction because that fits the situation best.