NOT SATISFIED WITH SONJA'S TREATMENT

I was charged twice for fuel by a petrol attendant at Kathu Elegant garage. I called the next day, and I was told it shows on their system therefore I can come collect the money anytime I am around or send somebody. The next day i sent someone and she was told to bring the statement even if they had admitted to having charged me twice. I emailed Sonja Zeelie the statement and didn't even confirm receipt. I sent the person again and she was told my statement was an excel spreadsheet. Which is not true, the statement was extracted from the mobile app in a csv format. If the money shows in their system, why am I being sent back and forth as if it's my fault. They should train their petrol attendant on how to use the machine. Her email address is