Gulf Oil

When I have spoken to cashier he took the phone and he is trying to call police just because I have asked him to explain me and stop the gas. "Keep saying go call the company and there is no owner and no manager". When I have realized that the charge is $3.89 went back and asked him to stop the gas he was playing in the screen until $30 finished then he gave me the receipt and stopped me to leave the store (trying to put it me as I am trying to trick him)

I need To verify this horrible customer service and horrible service from the company