worst service ever

it is with great frustration that i write this complaint about the sasol in protea glen, I purchased petrol at sasol for R200 and when i paid with my bank card their speed point gave an error and i asked that they let me know if the transaction had not gone through successfully as their manager already has my number because something like this happened before where i paid for petrol twice and they had to refund it after 3 days, i was transparent to say if it shows it didnt go through when you cash up please let me know and i will come pay it and to my surprise i get a call from a woman saying she is a police officer and an employee of Sasol protea glen ( Sibusiso) has opened up a case against me for theft of petrol. he called me and i acknowledged when he said the transaction didn't go through ( which he was very rude) and said i am currently no where around and upon my return will come through to pay it. it is was their functionality to pay that failed to operate. I fill up my petrol there on a weekly basis and i refuse to be treated like a ******** for supporting sasol Garage and their functionality that enables me to pay failed. they have charged me twice before was i supposed to treat them like ********s and open a case of theft with the police officers. I am LIVID with thsi because do you understand how a ******** offense affect other peoples profession ? It makes me wonder if Sibusiso did ever attend training on how to deal with customers and how that affects the brand of SASOL !!!!