Unfairly Treated

I worked at Shell Ultra City (Midrand)for a period of a year and half and since I resigned I signed everything but up until today I haven't been compensated for the period I've worked there, they even refused with my provident fund forms, I also remember the Manager Matome Sebola telling the lady at HR(Rofhiwa) that she mustn't give me anything that he'll get back to me. I've been waiting up until now and no one has ever gotten back to me