McDonalds Randburg theft

I just witnessed a phone theft right inside of McDonalds Randburg. There is absolutely no security at this McDonalds and instead of taking the matter seriously and calling the cops, the staff including the manager decide to make a big joke out of it and they kept blaming the customer for having her phone out (which makes no sense because she was inside the establishment ordering her food). I’m absolutely horrified and disgusted at the staffs behaviour and it’s absolutely not safe