Expired beverages served Nandos Tubatse Mall

on saturday , in Burgersfort Nando's , they sold us expired savanna drinks , beers expired in May , and unfortunately we noticed after we had drank the booze , we tried to raise issues , manager(zulu black male) was reluctant to give refund or proper beer , with bad attitude , he kept speaking in zulu to address the issue , I told him I will take this matter forward, he said he is not afraid of anything , I have pictures as evidence for expired beers, I was off monday the 2nd september and tuesday the 3rd due to stomach issue , lost my days at work and I rate per hour , due to expired drinks ; I need this manager to be dealt with , and need my compensation