Στείλτε οτιδήποτε βοηθάει την αίτηση αποζημίωσης.

Στείλτε is the imperative form of στέλνω (to send).

It is used:

• for more than one person: Send
• or for one person in a polite/formal way: Send

So Greek uses the same form here for:

• you all send
• please send (to one person formally)

In this sentence, it sounds like an instruction or request.

οτιδήποτε means anything, whatever, or anything that.

In this sentence, it introduces the idea:

• anything that helps the compensation claim

So it is not just anything in a completely random sense. It means:

• anything useful
• anything that would support the claim

It is a very common word in instructions and official language.

Because οτιδήποτε is grammatically treated as singular.

So Greek says, literally:

• anything helps not
• anything help

That is why the verb is βοηθάει and not a plural form.

βοηθάει means helps.

Here it introduces a clause describing οτιδήποτε:

• οτιδήποτε βοηθάει την αίτηση αποζημίωσης
• anything that helps the compensation claim

So βοηθάει is not the main verb of the sentence.
The main verb is Στείλτε.
The part with βοηθάει tells us what kind of thing should be sent.

Yes. Both βοηθάει and βοηθά are used in Modern Greek.

• βοηθάει = a very common full form
• βοηθά = a shorter equivalent form

There is no important difference in meaning here.
So this sentence could also appear as:

• Στείλτε οτιδήποτε βοηθά την αίτηση αποζημίωσης.

Because βοηθάει takes a direct object here.

So:

• βοηθάει την αίτηση = it helps the application/claim

That means την αίτηση αποζημίωσης is in the accusative case, which is what you expect for a direct object.

If it were της αίτησης, that would be genitive, and it would not fit this structure.

αποζημίωσης is genitive because it depends on αίτηση.

This is a very common Greek pattern:

• noun + genitive noun

So:

• αίτηση αποζημίωσης = application/claim for compensation
• literally something like compensation application/claim

The genitive here shows what kind of application/claim it is.

Similar patterns are very common in Greek:

• αίτηση εργασίας = job application
• κάρτα μέλους = member card
• τιμή πώλησης = sale price

Because the whole phrase is centered on την αίτηση.

Greek often uses:

• article + noun + genitive noun

So:

• την αίτηση αποζημίωσης

The second noun often appears without its own article when it functions like this and defines the first noun.

This is normal and natural Greek.

Often yes, depending on context.

On its own, αίτηση usually means:

• application
• request

But in insurance, legal, or compensation contexts, αίτηση αποζημίωσης is a natural way to say:

• compensation claim
• claim for compensation

So even if the basic word αίτηση is application/request, the whole phrase can match English claim very well.

Greek often does not need a separate word for that in this kind of structure.

English says:

• anything that helps

Greek can simply say:

• οτιδήποτε βοηθάει

So the meaning of that is built into the structure.
This is very normal in Greek relative-type expressions.

Not completely. Greek word order is more flexible than English.

This sentence:

• Στείλτε οτιδήποτε βοηθάει την αίτηση αποζημίωσης.

is natural and straightforward.

A small variation like:

• Στείλτε οτιδήποτε βοηθά την αίτηση αποζημίωσης.

is also natural.

But the given order is good because it clearly starts with the instruction Στείλτε and then says what to send.

It sounds fairly neutral to formal.

Reasons:

• Στείλτε can be a polite instruction
• the phrase αίτηση αποζημίωσης sounds administrative or official
• the overall style fits forms, customer service, or official requests

So it would sound very natural in emails, forms, or instructions from a company or organization.