Što se tiče prenosa broja, pitajte korisničku podršku.

Što se tiče is a very common fixed expression meaning as for, regarding, when it comes to, or with respect to.

So:

• Što se tiče prenosa broja... = As for number transfer/number porting...

Literally, it is built from što + se + tiče, but in practice you should learn it as one set phrase.

It is best to learn it as one chunk.

Even though the parts can be analyzed grammatically, learners usually benefit most from treating što se tiče as a fixed expression used to introduce a topic.

Useful pattern:

• Što se tiče + genitive
• As for / regarding + noun

Examples:

• Što se tiče cene, to je u redu. = As for the price, that is fine.
• Što se tiče vremena, sutra ne mogu. = As for the time, I can’t tomorrow.

Because after što se tiče, Serbian normally uses the genitive case.

The basic noun is:

• prenos = transfer

But after što se tiče, it becomes:

• prenosa = genitive singular of prenos

So:

• što se tiče prenosa broja = regarding the transfer of the number

Because prenos broja means transfer of a number, and Serbian often expresses of X with the genitive.

So:

• prenos = transfer
• broj = number
• prenos broja = transfer of the number / number transfer

Then, because the whole phrase follows što se tiče, the head noun becomes genitive:

• što se tiče prenosa broja

This is a good example of genitive appearing in more than one place inside the same phrase.

In this context, prenos broja usually means number porting or transferring a phone number from one provider to another.

A native English speaker may expect something like number transfer, but in telecom/customer-service language, number porting is often the most natural translation.

Because that opening phrase functions like a topic-setting expression: as for number porting.

It is separated from the main clause by a comma:

• Što se tiče prenosa broja, pitajte korisničku podršku.

This is similar to English punctuation in sentences like:

• As for number porting, ask customer support.

Pitajte is the imperative plural form, and it is also used as the polite/formal singular imperative.

So it can mean:

• ask when speaking to several people, or
• ask when politely addressing one person

Compare:

• pitaj = ask! (singular, informal)
• pitajte = ask! (plural or formal singular)

In customer-service language, pitajte is very common because it sounds polite.

It can be either:

1. plural: talking to several people
2. formal singular: politely talking to one person

Without more context, both are possible. In service messages, instructions, and official language, it is often best understood as polite singular/general polite address.

Because pitati takes a direct object, and the direct object here is in the accusative case.

Dictionary forms:

• korisnička podrška = customer support

In the accusative singular feminine, this becomes:

• korisničku podršku

So:

• pitajte korisničku podršku = ask customer support

Both the adjective and the noun change:

• korisnička → korisničku
• podrška → podršku

The dictionary forms are:

• korisnički = user-related / customer-related
• podrška = support

Together in nominative:

• korisnička podrška = customer support

Because the phrase is the object of pitajte, it changes to accusative:

• korisničku podršku

Yes. That would also sound very natural.

Compare:

• Pitajte korisničku podršku. = Ask customer support.
• Kontaktirajte korisničku podršku. = Contact customer support.

In many real-life situations, kontaktirajte may sound slightly more natural in English-style customer-service wording, but pitajte is perfectly understandable and idiomatic.

In standard usage, što se tiče is the normal fixed expression.

Learners often know šta as what, but in this idiom the usual form is:

• što se tiče

So even if you have seen both šta and što elsewhere, this expression is normally learned as što se tiče.

Yes, Serbian word order is flexible, but this sentence is already in a very natural order.

Standard version:

• Što se tiče prenosa broja, pitajte korisničku podršku.

You could rearrange things in other contexts, but for neutral, clear, customer-service style, this is the best order to learn.

It sounds neutral to polite, and somewhat official/customer-service-like.

That feeling comes mainly from:

• pitajte instead of informal pitaj
• the formal phrase što se tiče
• the service-related wording korisnička podrška

So it fits well in instructions, help pages, or customer communication.

If you were speaking to one person informally, you could say:

• Što se tiče prenosa broja, pitaj korisničku podršku.

The only change is:

• pitajte → pitaj

Everything else can stay the same.

It comes from the verb ticati se, which means to concern or to relate to.

In što se tiče, you are seeing a fixed expression based on that verb. You do not need to fully master the verb right away, but it helps to know that the phrase is connected with the idea of concerning/regarding.

So conceptually:

• što se tiče X = as far as X is concerned / regarding X

Not necessarily.

Word for word, it is something like:

• transfer of the number

But in natural English, depending on context, you would usually say:

• number transfer, or
• number porting

So for learning Serbian grammar, it is useful to see the structure. For natural translation, it is better to choose the English phrase that fits the situation.