Land Rover Stellenbosch--Faulty Land Rover Discovery Sport

Purchased a Land Rover Discovery Sport at Land Rover Stellenbosch. Advised them the vehicle wobbles when driving. They worked on vehicle for 3 days, vehicle came back they told me it was fixed. I phoned them an hour later to tell them its even worse. They said they could find a fault. In other words they **** to me. Vehicle not even a month old since I bought it. They are refusing to exchange the vehicle. Want to try to fix again. Why must I be satisfied with them wanting to fix again, they had their opportunity and then **** to me. Found even more faults. Not a pleasure to drive such a vehicle. Have no trust in the vehicle or the dealership. Not happy at all!!!