Lost galaxy s10e in train, reported it, what more can I do?

[vidak]

Forgot my phone in Intercity Direct from Amsterdam to Rotterdam on 14 December 2023.
Filed a report on the same night as soon as I got home.
They did not find it in a few days and then got a report it was not found within 3 weeks too.
I'm positive that I left it on the train. I was in the first class and I think it fell between the seat and the train window. Could be that in this first class it's not that frequent in terms of people passing through so it could be days or weeks before someone saw it or found it. Maybe it's still sitting there.

Been calling NS lost and found several times, seems like they have a pretty big database. They always search different. My phone is white background with black case. I'm not sure if anyone found it and listed it, did they list it as black or white. NS people on the phone sometimes feel like they almost can see my phone in one of the entries but then somehow it's not.
Is it possible that I also have insight in that database? Can I go somewhere in person and look for my phone, maybe it was just listed wrong and now is rotting there somewhere.

I also checked iLost and verlorengevonden many times but nothing there.
It does not have a dutch sim card but a foreign one, was my phone from Serbia.

I'm checking google fond my phone and only thing I see is that Last seen on december 14th.
If I provide my IMEI or something - would anyone be able to help me?

I'm positive it's rotting at NS somewhere but due to size of their database they might not be able to see it.

Does anyone have any other tips what could I try?

[grasmanek94]

Alleen Nederlands is toegestaan, dus;

Indien je telefoon identificerende informatie had (voornaam + achternaam, of iets anders), is mogelijk dat een voorbijganger de telefoon heeft ingeleverd bij de politie of de gemeente.
De uitdaging die je hier hebt is dat je niet weet waar exact, maar ik zou dan alle gemeentes op de mogelijke route bellen..

Het komt wel eens voor dat wanneer zulke spullen dan bij de gemeente wachten om opgehaald te worden (elke gemeente heeft zijn eigen plek daarvoor).

[swhnld]

If you put a Samsung account on it, that could then track the phone, but battery is likely dead by now.
If you have a photo you can try submitting it to NS lost and found maybe?
Other than that, learn from your mistake.