syuuriuketukebangou wo kakuninsimasu.

A natural reading is:

しゅうり うけつけ ばんごう を かくにんします。
or, without spaces as it would normally be written:
修理受付番号を確認します。

Breakdown:

• 修理 = しゅうり
• 受付 = うけつけ
• 番号 = ばんごう
• を = pronounced o
• 確認します = かくにんします

In normal Japanese writing, you usually would not put spaces between these parts.

を marks the direct object of the verb.

Here, the verb is 確認します = to check / confirm, so the thing being checked is:

修理受付番号 = the repair reception number / repair受付 number

So the pattern is:

[thing being checked] + を + 確認します

That is why を is used here.

Japanese very often leaves out the subject when it is clear from context.

So 修理受付番号を確認します。 could mean things like:

• I will check the repair reception number
• We will check the repair reception number
• Please check the repair reception number — but only in certain contexts, and this exact form is usually more like a statement than a direct request

In a service or business setting, the speaker often does not need to say I or we because it is understood.

確認します is the polite -ます form of 確認する.

• 確認 is a noun meaning confirmation / checking
• する turns it into a verb: to confirm / to check
• します is the polite form of する

So:

• 確認する = to confirm / check
• 確認します = will confirm / confirm / am confirming

It is a very common business-style verb and sounds more formal than some simpler alternatives.

Japanese -ます form does not clearly separate simple present and future the way English often does.

So 確認します can mean:

• I check
• I will check
• I am going to check

The exact meaning depends on context.

In many real situations, this sentence would naturally be understood as something like:

• I’ll check the repair reception number
• We’ll check the repair reception number now

Japanese often combines several nouns into one long compound.

Here is the structure:

• 修理 = repair
• 受付 = reception / acceptance / intake desk
• 番号 = number

Together, 修理受付番号 means the number connected with the repair intake/reception process.

A more literal breakdown would be something like:

• repair reception number
• repair request intake number
• repair acceptance number

Japanese does this kind of noun stacking very often, especially in formal, technical, or business language.

Because Japanese often makes compound nouns directly, without の.

So 修理受付番号 is treated as one combined term.

If you inserted の somewhere, it might sound less like a fixed label and more explanatory. For example, something like 修理の受付番号 could be understandable, but it is not the same compact, label-like wording.

On forms, screens, notices, and customer-service language, the compact compound 修理受付番号 is very natural.

It can work as a complete sentence, especially in polite business language.

But in practice, it may also sound like:

• a staff member speaking formally
• a system message
• a procedural instruction
• a note in a workflow

Because it is concise and formal, it fits customer-service situations well.

For example, a staff member might say it to mean:

• I’ll check your repair reception number.

A system might display it as part of a process:

• Checking repair reception number.

No, standard Japanese normally does not use spaces between words like this.

The normal written form is:

修理受付番号を確認します。

Spaces are sometimes added in teaching materials to help learners see the parts more easily:

• 修理受付番号
• を
• 確認します

So the spaces here are just a learning aid, not normal spelling.

It is polite because it uses 確認します, the -ます form.

This is appropriate in:

• customer service
• workplace communication
• speaking to someone you do not know well
• formal instructions

It is not extremely humble or honorific, but it is standard polite Japanese.

Compare:

• 確認する = plain form, less formal
• 確認します = polite form

So this sentence sounds professional and neutral.

Yes, but only if the context is already clear.

• 番号を確認します。 = I’ll check the number.

This is grammatically fine, but 番号 by itself is much less specific. It could mean many kinds of numbers.

Using 修理受付番号 makes it clear exactly which number is being checked. That is especially useful in business, support, or repair-related communication.