Disgusting service by Golfwagen Johannes landman

I bought parts from Golfwagen randpark ridge,I experienced bad customer service ever in my life,I bought a water pump and radiator bottle on the 03/09/2021.i fitted both parts to my vehicle after realising that the water bottle was leaking from the plug ,I returned the back within a period of three hours,I spoke to Schalk who sold me the parts and he first went to the back to check where the bottle was leaking and came saying the manager said we can't change the bottle,I told him I bought this bottle three hours ago and is faulty and I need a new bottle .he went to his manager again and he came out saying he is unable to replace the bottle because of the policy from their head office which will happen after seven days.i told Johannes Landman that I needed I new bottle as this one is faulty.the manager did not introduce himself to me.his solution to my problem was buy another bottle as we can refund you after seven.this manager needs a good customer service training and diversity training.