Lost luggage on 111/117

Hi all,

My name is Eddie, I am visiting research intern here at OIST. I just arrived in Okinawa yesterday and I got the 111/117 bus at 17.10 from Naha to the Ishikawa Interchange however once I got off I forgot to take the luggage out of the hold beneath the bus. I have tried contacting all the relevant bus operators but they state they have not seen anything. Is there anything else I can do? Thanks.

EDIT: I found it, the resource centre helped out and I retrieved it today. Thank you so much to all who helped.🥰🥰

Regards,
Eddie