gogaek senteo-e je sanghwangeul seolmyeonghaessseupnida.

It is omitted, which is very common in Korean.

The full sentence could be:

저는 고객 센터에 제 상황을 설명했습니다.

But if the speaker is already obvious from context, Korean usually drops 저는. English often requires a subject, but Korean often does not.

고객 센터 literally means customer center, but in natural English it usually corresponds to customer service, customer support, or the customer service center.

So in this sentence, it means the speaker explained their situation to customer service.

Here, 에 marks the target/destination of the action, so it works like to in English:

• 고객 센터에 설명했습니다 = explained to the customer center

With institutions, offices, or places, 에 is very natural.
If you were focusing more on actual people, you might also see 에게 or 한테 in other contexts, but 에 sounds very normal here because 고객 센터 is being treated as an organization/contact point.

제 means my, but it is the humble/polite form.

It comes from 저의, which is often shortened:

• 저의 → 제 = my (polite/humble)
• 나의 → 내 = my (plain/casual)

Because the sentence ends with the formal polite -습니다 style, 제 matches that level well.

So:

• 제 상황 = my situation
• 내 상황 would sound less formal

을 is the object marker. It shows that 제 상황 is the thing being explained.

• 제 상황을 설명했습니다
• literally: explained my situation

The verb 설명하다 takes an object, and 제 상황 is that object.

상황 means situation, circumstances, or what was going on.

In this sentence, it refers to the speaker’s personal case or problem they told customer service about.

It is a fairly neutral and useful word. Depending on context, 제 상황 could mean:

• my situation
• my circumstances
• what happened on my side
• my case

Because 설명하다 means to explain, while 말하다 means to say/speak/tell.

• 설명하다 focuses on giving details or clarification
• 말하다 is more general

So:

• 제 상황을 설명했습니다 = I explained my situation
• 제 상황을 말했습니다 = I told them about my situation

Both can work, but 설명하다 fits better if you mean you gave a proper explanation.

설명했습니다 is:

• past tense
• formal polite style

Breakdown:

• 설명하다 = to explain
• 설명했- = explained
• -습니다 = formal polite ending

So the sentence sounds appropriate for formal speech, reporting something, customer-service contexts, or polite writing.

Yes, depending on context.

Korean past tense often covers both:

• I explained
• I have explained

If the context is just reporting a past action, English may use I explained.
If the context emphasizes that the action has already been completed, English may use I have explained.

Korean itself does not force that distinction here.

In real-life Korean, 고객센터 as one word is very common.

You may see both:

• 고객센터
• 고객 센터

The one-word version is especially common in business writing, websites, and app menus.
The spaced version is still understandable and may appear when the writer is treating it as a more transparent noun phrase.

If you are copying a company’s official label, use whatever spelling that company uses.

A common polite but less formal version would be:

고객센터에 제 상황을 설명했어요.

A casual version would be:

고객센터에 내 상황을 설명했어.

So the levels are roughly:

• 설명했습니다 = formal polite
• 설명했어요 = polite everyday
• 설명했어 = casual

And for my:

• 제 = more formal/polite
• 내 = casual

It depends on context.

• 고객 센터에 제 상황을 설명했습니다.
• 저는 고객 센터에 제 상황을 설명했습니다.

Both are natural.

Adding 저는 can help if you want to:

• make the subject explicit
• contrast yourself with someone else
• sound clearer in isolation

But in normal Korean conversation, leaving it out is often more natural if the subject is already obvious.