Toyota doesn't value young and female customers

I bought a brand new car April, it had a minor accident were radiator was damaged, private mechanic fixed it.. Nov my car started over heating and I took it to Toyota N1city were they told me that top gasket is damaged and I must pay 50k to win back the warranty and for them to fix the car. Paid and got my car Monday and then Sunday it showed the warning lights and took it back to them and they told me it was my fault... augured that, they then fixed my car. Got the car Friday late, next Friday it started again and I took it to toyota Mtata. Long and short of it all my car has been at toyota and this whole festive I am without the car and Toyota N1 city are playing hide and seek to accept that this is a return job