re-payment (wages)

I worked for NATPRO Security for 4days 18 -21 july 2015 and due to distance of my work place mr D Nell *** said I must hand over the uniform and I did on 23july 2015 and he said I will get my wages (salary) for 4days end of july but up to so far he hasn't paid me. Contacted their head office at polokwane *** but no help as well. Mr Nell is not taking my calls or respond to my sms.