Theft at hungry lion

I am extremely upset and disappointed with the incident that took place at Hungry Lion. I accidentally left R100 inside the store, and one of the staff members took it and went to the bathroom to hide it. When I reported the matter, the manager was dismissive and failed to handle the situation seriously. I am highly dissatisfied with how this was managed and would like my R100 refunded, as it was taken by a staff member while on duty

I would like a response asap because I work hard for my money