Bad information

We bought a Ford Ranger double cab. The vehicle that we bought had problems with the gearbox 3 weeks ago we had the vehicle for 2 weeks and the the vehicle broke down on the document that they sent that was check for the vehicle on the document the vehicles gearbox says it was fine. But how do we come after we drove the vehicle and after 2 weeks the vehicle got stuck. We buy cars said we must take out the insurance on the vehicle which we did but now we are paying for the damages of the vehicle. Please if someone can come back to me and not say to us someone will be in connection with us 😔 Is this the way you guys so business