Tempest Car Hire - *****ulent Dedections

I rented a car at OT Airport from 17 April - 27 April. A deposit of R5820. 00 was debited to my credit card. on 28 April I received my 'final' account for E-Tolls, refuelling, documentation and service fees. To my horror, I was billed for a LOST E-TAG R850. No how does on lose an E-Tag that is tuck to the window. Lucky for me I took a picture of the car at delivery to record my mileage and there is the image with the E-Tag in place. I have sent several email to Tempest to query this *****ulent made up charge and a history of my E-Toll gantry's but have had zero reply. I included images of my actual picture at the airport in the delivery bay and CCTV images I have access to of the vehicle in and out of a centre I manage on 27 April 2023 to show the E-Tag visible and in place. I have tried to call 4 x times but their only number remains unanswered. My email remain unanswered. My refund albeit to be the incorrect amount is still not in my credit card which means I had to settle my card by the 1st of the month whilst they have my money since 17 April 2023 earning interest in their bank account. I have now mailed them again begging for someone to call me. I will NEVER USE TEMPEST AGAIN even if it means I cant use my Vitality Discount via Discovery.