Third time writinh this review about Nissan. My problem not getting solved

This is the third time i am writing this complain. I recently took my ford to Nissan Harrismith/ Morgan Nissan adressed under Bethlehem branch. Morgan Nissan. On their pamphlet they say they do an inspection or some points check before service. They did not do this for my car. They did not give me a price list of what was done to my car. I asked them to check my front shocks. They agreed but did not check them. It cost R600 to do points check which i must now pay separatley. When they took my car in they gave me a quote. After service they tell me they dont have fuel filter so they did not change it. But price i paid was same as quote. Now i must pay separate labour cost for fuel filter change. Why was i not told before taking my car that they did not have fuel filter. Nissan south africa told me there is nothing they can do about it. Dealer principal is ignoring me hoping i vanish. I will tell my storry over and over again until my problem get sorted out. Ill take this to every avenue available to me.i will not go away until my problem is sorted and it better be soon