Unfair labour treatment

My wife is employed at Festive Chicken farm under Astral.She was injured at work ehich resulted to a knee operation. She has not been paid ehich at some time manager pr supervisor called me to inform my wife to come to come back at work so that they can claim for her compensation. She has been to doctors appointment without company assistance.She is back at work using crutches to ealk.She tried calling HR regarding payments but eas told that the same HR forget to submitt paper or report for payment. At wages department she eas told to fill in leave forms for days lost.With no safety officer supervisor or manager fill in injury on duty forms.My wifes accounts have been handed to lawyers and policies lapsed .At that company there are several employees injured with no compensation.Others lost finger .The only emporment is health and safety with certifate not accredited.They work 24 days with 4days to res in a month.At some stage they work till late and have to pfovife themselves transpirt.Promotion is sourced from other farms.I am sick and tired of companies that still disrespect their employees. They just want production.*** they can call me.Some were fired without due process as they take employees for granted .