Covid 19 - Consumer Complaint for Clicks Store - Head Office

My little sister works at clicks Melrose arch she tested positive for covid 19 last week and her manager tells her she should come back before 14days of isolation ends worse part is that 8 other employees have also tested positive an are expected to go to work 8tested positive and one passed away due to covid 19.... The shop only closes one day for fumigation then its business as usual more and more stuff get infected there and others get reinfected.... Something needed to be done there we cannot put money first when employees are at risk please look into this matter urgently