MTT Black Big Smartphone

I have lost my mobile phone in a Taxi, 3 days ago, it is Black, with a strong shield able to ho in deep water, the brand is MTT, i think I've lost him in a taxi, maybe someine took it but when i'm calling it still ringing if someone have an idea please contact at [email protected], or send it at 197 Swords Road, it would be rewarded if the "robber" bring it back there is a lot of personnal datas on in, and more its my only way to contact my family I'm not from this country I'm a stranger, thanks to everyone who will do something for help me, hope to see a answer soon, regards