Electrical Power Steering

I bought my Accent 1.6 motion at Menlyn in 2012. In December 2012 after fitting the tracking device from car tracker, the EPS light stayed on and the steering wheel was then stiff. It corrected on the very same day after some lenghty phone calls. Four or five months down the line, the EPS light went on again and the steering wheel was stiff again. The hyundai in Mafikeng told me the EPS unit was apparently fried and they reccomended that I take the car back to Menlyn for repairing. In Menlyn I was told that their \GDS or something"cable is not working and they will be unable to diagnose the car and they reffered me to Hatfield. A new unit was fitted and I was told and the wheel remained stiff. They then talked about re-wirering the vehicle and I was very much uncomfortable with it. I had the tracker unit removed because they belived that it was causing intereference with the electrical components of the vehicle. I drove the stiff vehicle for more than three months and suddenly the steering wheel was okay. On Monday 30th of November 2015"