No After Service or Care from Cargo Motors Bedfordview

Not sure even where to begin, i bought a Mitsubishi Triton from Cargo Motors in Bedfordview a few months ago. Recently my revers camera & lights stooped working, after a few visits to the workshop they determined that my switch is broken and need to replace, well this was more than month ago almost 2 months, only to tell me they cant repair as they dont have a part. No one in SA has a part, as if it is our fault that hey cant keep up with there company values, the Dealer principal dont even have the decency to call me, after leaving a few messages begging him to give one of his customers a cal, to date nothing, and then they cal them self professional,, so please dont buy from Cargo Motors, as you will get no after sales service at all.