I know its a pain - but you're better to call the station manager directly (where you landed) and have them follow this up for you.

As you know, most airlines use contract cleaners and if they are reputable, the cleaners will simply hold all lost and found articles for a certain period before disposing of them.

If you let us know where you landed, one of us will surely be able to get you local contact details for you to call. Good luck.