Over charged

On the nth May 2015 I went to Tyremart Milnerton and had 4 Tyres fitted. The salesman told me that my left hand CV joint will have to be replaced. He qouted me R1950 for the one CV Joint. Why I didn't get 2 more quotes is because I trusted this person. I wad sitting and waiting for the repair that took 1 hour, a gentlemen sitting with me asked me what they charging me, when I answered he just said what a *******. When I got home I phoned around and found 5 quotes all between R500.00 and R600.00 with wheel alignment included. How can anyone sleep at night if they ******* pensioners like that. im not sure what I should di about this, maybe go to the newspapers