BAD SERVICE FROM MAN SA

I HAVE BEEN TRYING TO BUY A NEW MAN TRUCK FOR A WHILE NOW. I TOLD THE SALESMAN ON THE DELIVERY OF THE LAST TRUCK THAT I BOUGHT FROM THEM, "NO 5 FOR THE YEAR" THAT I WILL BE READY FOR THE NEXT NEW TRUCK END OF JUNE, THIS WAS ON THE 26TH MARCH 2021, I SPOKE TO HIM 3 TIMES AGAIN AND ASKED FOR THE QUOTE, ON THE 15TH OF JUNE I REQUESTED A QUOTE FROM A DIFFERENT SALESMAN, HE QUOTED ME, AND CAME BACK THE NEXT DAY SAYING THAT HE CANT SELL TO ME AS I WAS A CLIENT OF ANOUTHER SALESMAN, I SPOKE TO THE SALES MANAGER ABOUT THIS AND HE ASSURED ME THAT THERE IS A TRUCK AVAILABLE FOR ME, THE FIRST SALESMAN CAME BACK TO ME AND TOLD ME HE HAS MANAGED TO GET A TRUCK FOR ME BUT HE WILL ONLY KNOW FOR SURE IN THE NEXT DAY, A WEEK WENT PAST AND NO NEWS, UPON TELLING HIM THAT IF HE DOESNT WANT TO SELL TO ME HE MUST JUST SAY SO AND NOT BLOCK ME FROM BUYING FROM ANOUTHER SALESMAN, HE REPLIED SORRY I WAS VERY BUSY, WHAT CAN I HELP YOU WITH??? AS IF BUTTER CANT MELT IN HIS MOUTH ASIF HE DOESNT KNOW WHAT I AM TALKING ABOUT!!!! WELL FOR STARTERS, I BOUGHT A NEW SIDE TIPPER TRAILOR FOR THE TRUCK THAT I WAS SUPPOSE TO GET END OF JUNE THAT IS NOW STANDING, AS I DONT HAVE SOMETHING TO TOW IT WITH, THAT TRAILOR IS A R900 000.00 INVESTMENT STANDING AS I DONT HAVE A TRUCK TO TOW IT WITH!!! AND THUS NOT GENNERATING AN INCOME!!! I AM SO SCHOCKED WITH THE LEVEL OF SERVICE I CANT IMMAGINE IF IT WAS MY BUSINESS WHAT I WOULD HAVE DONE TO A SALESMAN ACTING LIKE THIS!!!! I HOPE THAT THIS WILL GET TO THE RIGHT PERSON AS TO CLEAR UP THE INTENTION OF MAN SA IF THEY ARE IN THE BUSINESS OF SELLING TRUCKS OR NOT!!