Lost: Friend lost a mobile phone Samsung

My Neighbour lost his Samsung 53A AG phone on his way back from the spa on the avienda at 10 20 am tuesday 8th September in the morning this week. . He got in the local taxi to go home with shopping and thinks it fell out in the  taxi. Taxi company keep asking me to call back in an hour on his behalf but still no update back from them . He was dropped off at calle suiza and relized he had no phone. He could have dropped it in the street or spa shop.  If anyone has found it or handed it in please contact me. He's lost without it. Much appreciated.