Disappointing service from Planet 42

I paid the car instalment for 2 months only,the car broke down on the 9 Feb 2024,I phoned the breakdown assistance,I was told the problem is the gearbox,the insurer(dealerbuddy)was so useless,the car wad at the workshop for almost 2 weeks the insurer was at no help the dealership (Gibbor)where I bought the car took back the car to check it,and I was told that the gearbix is perfect the problem was electrical not mechanical,its now more than a months without having a car I need a solution. I sent numerous emails to Planet 42 as I need a way foward,they dont even bother to respond to my emails,I pay R8900 for that car and I refuse for the instalment to be deducted for end March as I was not having a car with me