I rented a car from Sani Sixt Rentals at OR Tambo via Bookings

I rented a car from Sani Sixt Rentals at OR Tambo via Bookings.com from 24–27 June 2025. I was charged a deposit of R8600, with R219,63 for fuel chargers and R523,25 for the windscreen damages, which I didn’t dispute. At pickup, staff told us the vehicle had a chip on the windscreen and advised us to take pictures (which we did). On return, another staff member claimed a new chip had appeared. I explained it was there before, but we were in a rush for our flight, so I signed the damage form. Despite being told on 25 July that the refunds department had requested my remaining R7857.12 be paid out, I’ve received no refund and no responses to my follow-ups since 30 July. It’s now 6 August, and I’m still waiting. Sani Sixt had no issue deducting money quickly, but refunding what’s owed is being ignored. This is unacceptable service. I want my refund paid out immediately. THEY DON’T EVEN DESERVE A STAR!!