No Honesty and Intergrity

I had a nasty experience with an employee of IDTek recently, I got out of shop got into my vehicle without realising my Phone fell out. I drove of off realised my phone did not slip out into the vehicle and turned around to back to the parking area where i was, I got there saw this husband and wife using the IDTek Vehicle asked them if they haven't pick up my phone and they rep**** with a straight face that they haven't seen it. and moved on towards the ATM. I then went into the shop to go and check the video footage that shown the wife picking up the phone in the where my vehicle was parked in put it into the IDtek van that they were using the registration of the vehicle is DR 82 WW GP. Since they are in a security industry, i would have thought they would show some honesty and integrity but they managed to switch the phone off very quickly because when i managed to call the number the phone was turned off. I just need the phone back because of the information on it