dishonesty and lie in certified

Good day I did buy a bakkie cash from maccarthy toyota lynnwood . And i have bakkie almost 4 months when i saw on one side of bakkie the bakkie paint work not smooth and i took it for inspection and found out the bakkie was in accident and full of rust spots i confrim with the automark jacques smith and with dealer principal meyer swanepoel he dont even get back to me at all . So please is there any 1 who can assist me with this matter because with how many people are they buzy doing it do and get away with it . And please tel me how to solve this problem please Regards God bless