Bad service

3 mouth a go I bought a Nissan Np200 at Kia 1st days after I bought it started with problems it was Monday the day 2 I took it back too the deal after 2 week of the dealer making excuses after taken the bakkie back I still had too pay the bank for a bakkie that I didn't have. So I bought a different bakkie by then now iam sitting with a canopy that is lacking and when I bought with a loan I also took a loan for the canopy. I have a small courier company after a month of fights with them and the bank I need help pls