Bad customer service

I was at Shell ultra city Midrand an hour ago the one on the left when coming to Midrand from Pretoria, the petrol attendant start by putting pressure on my wheels, then clean the window screen immediately when finish I pay him, I ask him if I can give him cash then swipe other amount, he said yes, he process my payment. I was busy removing unused receipts in my car and he said I must give him he will throw for me, and the receipt that he swiped he didn’t give me he just said is successful and show me then he keep it I just tell myself that he is submitting it to the shop, as soon as I go, I see the pertrol is not moving is on the same kilometres that I had when I arrived at the filling station, I thought maybe the bars will rise as the car is moving but nothing changed until I reached my destination and I couldn’t make a U-turn on freeway. So I want shell to bring back my money because they are ****mers this is a ****, and if it was me as a customer and forget to pay after putting petrol they were going to run after me and even open cases, so now can I open case for being ****med by shell???.