South crest Bad service

Im really disappointed with caltex Alberton on Paul Kruger, on Wednesday the 25th of November I went there at night to pour petrol and get some items from their store. The petrol attendee who was assisting me decided to wash my windscreen and dented it. When I come out from the store he did not tell me what he did only to discover a crack and a scratch the following day on my window. When I called management said the owner will call and denied the fault is theirs.