Loss and Rude Customer Service at Engen Florida Glen

I chose to fuel up at Engen because of the ThankU card points benefit. I was at Engen Florida Glen on 25 May 2018 at 22h00. At the till inside they couldnt swipe my thank you card for the points benefit. I still dont know why, the lady at the till couldnt tell me why. She asked me to go have it swiped outside at the fuel attendant. When i got to him(Lawrence), he gave me a stinking attitude saying they already tried to help me inside I must wait his busy with another car, but he was just standing there infront of the other car doing nothing. The lady at the inside till said she couldnt process my payment with the thank you card and sent me to the fuel attendant, the fuel attendant decided his too busy(doing nothing) to process my payment for the fuel. They sent me from pillar to post, i was late for a meeting, out of frustration i had to leave without paying for the fuel. When he saw me leaving he suddenly had time to come run to my car, tried to pull open my car door & we had a tussle, i then locked the door because he was trying to manhandle my grip away from the door. He came running after me to the traffic light, but he didnt have time to process the payment, yet he had time to manhandle my car door and run after a moving car to the traffic light. After returning from my meeting i went back to pay for the fuel, hoping to find more decent people on duty, just to find its still the same people who still couldnt help me. I called for the manager, some guy by the name of Henno came and while i narrate my complaint to him, this Lawrence guy kept talking over me, the other attendant reprimanded him&told him to let me finish&not interrupt, while the socalled manager just stood there & let the rude behaviour from the lawrence guy continue. The manager, equally useless couldnt resolve the issue&had a grin on his face, as if my complaint was just a joke to him. I paid for the fuel losing my thank you card points, out of curtousy then left, bcos i could tell i was dealing with absolute disgraceful people who has no respect for customers! I will not support engen florida glen again. I have a good mind to lay charges against this lawrence & engen for assault, for the manner in which that rude ******* tried to forcefully pulled open my car door!