Park and fly Durban steal fuel

Park and fly Durban took my vehicle guys name is Cleao. Everything was actually good pick up and drop off time perfect,they also washed my car,only issue was i found only after i had lwft that fuel was sucked out my car,i have pictures of the stains by the petrol cap and he washed my car butbthe stains were still there,so i tried washing it myself and it came off with ease,he is refusing to admit guilt,but its a little inconvenient esoecially since fuel prices are aky rocketing,ive asked that he resolves with me personally but refuses to so now i have gone public i have pics and videos as proof.