Poor Service

I bought a second hand car last year (2014) October. I noticed some things that I wanted sorted out on the car and requested this be done if I bought the car. I was told it would be sorted out. Nothing was ever sorted out without me complaining for it to be done. At one point I had to contact the main manager at the branch for help and a few things were sorted out like my number plates and proof of ownership. After more complaints I eventually even received a spare key for the car. The car had not been serviced like I had been promised it had and the breaks and break pads had to be replaced right after I got the car as they were in very bad shape. The back left passenger door doesn't open from the inside and I am still waiting for an indicator light cover. I have sent many emails and am no longer getting any response, I have also sent a complaint to Renault South Africa that I have had no response to. I honestly feel as though I am being ignored because I am female and I am fed up. This is disgusting on their part and I will not give up until something is done!!!!