Seamans Renault Port Elizabeth

I bought a brand new Renault Sandero Stepway 2018 model in December 2017 and a week after I bought the car there was already a problem with my headlights .After a 2 months waiting period my headlights was replaced only to see that the brand new lights are inperfect so when I went back to Renault Port Elizabeth I was told they don't know if warranty will replace it (It's brand new lights that is faulty )I'm really disappointed and wished I never bought the car.