MISSING ITEMS IN STORE

my phone got ****** in Checkers Eastgate, and I'm suspecting a guy who was standing by me, (who is a staff member) as I was listening to music through my Bluetooth earphones. I realized that my phone was gone after I paid. the people in checkers are telling me different stories. all i wanted, as to be sure of my suspicions. but the way people from Cherckers eastgate are dealing with this, i have a strong feeling that they are protecting the person I'm suspecting took y phone. they promised to call me Monday 18 Oct 2021, they did not, i had to call them, Petronella told me she will call me on Tuesday, today is Tuesday, then they tell me she is off....... they suddenly Michael had the audacity to tell me its not his fault that i lost my phone!!!!!!!!!! after they told me that they will check their footage when its fixed BECAUSE THEIR CAMCERAS HAVE A BACK UP RUNNING CAMERA system. what gets me fuming is the different stories they give me in Checkers. why cant they just tell one story and get over and done with it. instead of giving different stories???????????????what is soo difficult to to view the footage and give me an answer or if possible take a short video so i can see what really happened? question: 1. is the cameras not working because me the customer requests to see the culprit behind my ****** phone? 2. or the staff there in Eastgate is protecting the person im suspecting? 3 the funny part is that they can see me all over the shop BUT THEY CANT SEE THE ACTUAL INCIDENT OF THE TIME MY PHONE GOT ******...... STILL I SAY, SOMETHING DOES NOT ADD UP N THIER STORIES...........