My cellphone was ****** in Edgars Mall of Africa and the securities didn't even want to help

Today at 16:00 I entered Edgars Mall of Africa where I spend less than 15 minutes shopping for my niece, at the till point at about 16:10 I noticed my cellphone Samsung S8 and parking ticket had gone missing. I immediately looked for help, I ask one of the floor staff who escorted me to the exist security downstairs. Told her that my phone is missing and asked her if they had cameras, instead of responding to me she then asked me who stole it and I told her that I don't know. I stood in front of her until one customer come and asked me what I lost and I told her and she told me that there was a guy following me in the kiddies department and it might me him. Only after then which was at 16:35 the security lady said I should go upstairs to customer care and ask for Willemse, I eventually found him, he told me that their cameras may not be able to show me anything. He took me to their control room whereby I only saw myself walking past a mirror, looking at the clothes only for 5 seconds and no camera in the girls shoes department where I spend a lot of time. I fear ever shopping at Edgars is my safety is limited.