Pathetic *********** - parts sales and customer service

On two occasions within a space of 8 months I was given the wrong part for my 2014 KB300 despite the parts centre operator confirming many times that he ordered the correct one. I even brought samples of the parts and looked at their parts manager software with him and instructed the guy to order the part I needed, yet when it arrives its still the wrong damn one!!!! I've never dealt with such an *********** dealership before. On both occassions there were other disgruntled customers complaining in the background about their poor customer service. How can we get a simple thing wrong when I bring in the sample part and then select the exact same thing on the system but no it's the wrong thing again???.... Please sort this Centurion branch out and fire all those ungrateful, unfriendly, arrogant people that work there. And no you are not doing us a favour by helping us when we need service...it's your blady responsibility to do your job with competence and to uphold the Isuzu brand because it's simply a vehicle that deserves better people to suppor it. Please don't bother sending me any feedback or appologies...I don't need it...just sort out this Centurion branch once and for al!!! If you do bother contacting me prepare yourself for a verbal abuse session...I dare you!!!