Unethical business practices

I was employed by Kirby Randpark Ridge in February and worked for a month. The business was closed during lockdown and I was promised to be contacted to resume duties on Level 1. After 8 months they have still not paid my salary, commission and petrol fees as negotiated while the business has resumed operations. I have contacted them on several occasions and they failed to provide me with feedback or even return my calls. I have visited the business premises on numerous occasions to enquire about my unpaid salary and to resume duty, I was promised feedback that never materialised. I was shocked to see new recruits on training and business carrying on as usual. This business is unethical and unprofessional, using employees for labor ( Sales and obtaining future sales references) without pay and discard them. Kirby uses and abuses