Poor service

I’m extremely dissatisfied with the service I received from Alamo. On June 14th, I rented a car from them in Johannesburg and drove to Mpumalanga. When I collected the vehicle, it was making a strange noise, but I assumed it would be fine. However, the noise worsened during the trip, and my uncle discovered that the brake pads were worn out. I contacted Alamo, and one of their representatives initially told me to drive the car back to Johannesburg. I expressed my concern about safety, and they later sent a representative with a replacement car.

When swapping vehicles, I asked about the fuel arrangement since I always fill up the tank to avoid extra charges. The representative inspected both cars and said the fuel levels were similar, so I can filled up the replacement car to avoid extra charges.However, when i received the invoice, i was shocked to see a charge of R900 for petrol. I've emailed and called Alamo multiple times, asking about the charge, but it's been a week, and I haven't heard back. It's unacceptable that they provided a car with safety issues and now they're charging me for something that doesn't seem right.