Mi padre quiere reclamar porque todavía no le han devuelto el dinero.

After querer (to want), Spanish normally uses an infinitive for the next verb:

• quiere reclamar
• quiero comer
• queremos salir

So quiere reclamar literally has the structure wants to complain / wants to make a claim.

You would not say quiere reclama or quiere reclama que... here. The second verb stays in the infinitive: reclamar.

In Spain, reclamar often means to complain formally, to make a claim, or to demand what you are owed, especially in situations involving a bad service, a refund, a bill, or a company.

So here it is not necessarily dramatic complaining in a general sense. It suggests something more like:

• making a complaint
• filing a claim
• demanding a refund
• taking action because something has not been resolved

In this sentence, because el dinero is mentioned later, reclamar strongly suggests making a complaint/claim about getting the money back.

Porque as one word means because.

That is the form used when giving a reason:

• Quiere reclamar porque... = He wants to complain because...

Learners often confuse it with other similar forms:

• porque = because
• por qué = why
• el porqué = the reason
• por que = less common combination in other structures

Here, since the sentence is explaining the reason, porque is correct.

Todavía no means still not or not yet.

In this sentence:

• todavía no le han devuelto el dinero

it means the action of returning the money has not happened up to now.

The placement is natural in Spanish: it goes before the verb phrase it modifies.

You could often also use aún no with the same meaning:

• todavía no le han devuelto el dinero
• aún no le han devuelto el dinero

Both are common. Todavía no may sound a little more conversational in many contexts.

Le is an indirect object pronoun meaning to him here. It refers to mi padre.

So the structure is:

• le = to him
• han devuelto = have returned
• el dinero = the money

In other words, the idea is:

• They still haven’t returned the money to him

Spanish very often uses an indirect object pronoun even when English would simply say him later or leave it implied.

You could make it more explicit with:

• A mi padre todavía no le han devuelto el dinero.

The le still stays there. This is very normal in Spanish.

Because mi padre is not the direct object here. He is the person to whom the money is returned, so he is the indirect object.

Compare the roles:

• el dinero = the thing being returned = direct object
• mi padre = the person receiving it back = indirect object

That is why Spanish uses le, not lo.

A good way to see it is with the fuller version:

• Han devuelto el dinero a mi padre.
• Le han devuelto el dinero.

If it were lo, it would suggest that him is the direct object, which is not the meaning here.

Han devuelto is the present perfect: have returned.

In Spain, the present perfect is very commonly used for past actions that are still connected to the present, especially when the result matters now. Here, the important idea is that up to now, the money has not been returned.

So:

• todavía no le han devuelto el dinero = they still haven’t returned the money to him

In much of Latin America, speakers might more often use the preterite in similar contexts:

• todavía no le devolvieron el dinero

But in Spain, han devuelto sounds very natural.

The subject is an unspecified they:

• han devuelto = they have returned

Spanish often leaves out subject pronouns when they are not needed. Here, the speaker does not say exactly who they are, because it is either obvious from context or not important.

It could mean:

• the company
• the shop
• the airline
• the bank
• the people responsible

English often does the same with a vague they:

• They still haven’t returned the money to him.

Object pronouns normally go before a conjugated verb in Spanish.

So:

• le han devuelto
• me dijeron
• lo compré

Because han is the conjugated part of the verb phrase, the pronoun comes before it.

With infinitives, gerunds, and affirmative commands, pronouns can attach to the end instead, but that is not what is happening here.

For example:

• quiere reclamarlo = he wants to claim it
• están devolviéndole el dinero = they are returning the money to him
• devuélvele el dinero = return the money to him

But in the actual sentence, han is a conjugated verb, so le comes before it: le han devuelto.

Spanish often uses the definite article where English might not, especially when referring to a specific thing already understood in context.

Here, el dinero means the money, that is, the specific money that should have been returned.

Saying just dinero would be less natural in this sentence because we are talking about a particular amount already known to the speaker and listener.

Compare:

• Necesito dinero. = I need money.
  general, non-specific

• No me han devuelto el dinero. = They haven’t returned the money to me.
  specific money

Yes. In this sentence, todavía no and aún no both mean not yet / still not.

So you could also say:

• Mi padre quiere reclamar porque aún no le han devuelto el dinero.

That is perfectly correct.

In everyday speech, todavía is often felt to be slightly more common or neutral, but both are standard.

Because mi padre is the subject of the sentence, not a direct object.

The personal a is used before a specific human direct object, for example:

• Veo a mi padre. = I see my father.

But here:

• Mi padre quiere reclamar...

Mi padre is doing the action, so it is simply the subject. No a is used.

Yes. If you want extra clarity or emphasis, you can add the full indirect object phrase:

• A mi padre todavía no le han devuelto el dinero.

Or even:

• Mi padre quiere reclamar porque a él todavía no le han devuelto el dinero.

In Spanish, this kind of doubling is very common:

• full phrase: a mi padre
• pronoun: le

Even when the full phrase is present, the pronoun usually remains.

Yes, mainly the tense choice.

In Spain, it is very natural to say:

• todavía no le han devuelto el dinero

using the present perfect for a past action with present relevance.

In many Latin American varieties, speakers might more often say:

• todavía no le devolvieron el dinero

or in some places:

• todavía no le devolvieron la plata / el dinero

Also, reclamar in the sense of making a formal complaint or claim is very common in Spain, especially in customer-service situations.