Caltex Fuel Contamination damaged my vehicle

My Nissan Navara 2.5 dci was damaged due to fuel contamination at your Caltex Masakhane Service Station. My took my vehicle to Nissan for an assessment and they had quoted me over R8000 for parts that needed replacing due to fuel contamination present at your fuel station. <br> <br> They sent a sample of the fuel from my tank for testing and results came back positive for contamination. I only refuel at your Caltex Masakhane Service Station as my fuel card is restricted to that station only<br> <br> I require urgent feedback into this matter as I should not be responsible for the damage due to the poor fuel quality present at your service station!!!