Bad service

On Friday 28/02/2020, i went to MBT petrol station in Sophiatown, to put petrol in my car, i told the attendent to put R50.00 95 unleaded and he put R350.00 in and still made me a **** to my face and said he asked me R350 and i said yes, which i never agreed to, i asked for the manager and the manager told me he believes the attendent and he wants the balance of R300, i will not leave, which i never intented on doing, the attendant cursed at me and the manager just wanted the R300 from me but i never said R350. I then phoned the police and i had to pay the r300 later that day. Service is very poor, manager and attendent very rude. Customer is always wrong at this petrol station.