Avoid this company at all costs

The car I was given had 4 tyres that had low pressure and the petrol tank was not full when I collected it. After pumping tyres, they were down again next day. I rang and company sent new car. I filled tank and pumped tyres so when exchange happened I would not be charged any more for petrol. I filled tank of “new” car as soon as it was delivered so I knew how much I was in credit as driver gave it to me with a tank that was not full. The company is now charging me for the kms THEY USED to deliver a roadworthy vehicle and to take back the unroadworthy vehicle and the petrol THEY USED to bring me a roadworthy vehicle and to take back the unroadworthy vehicle. I expected the petrol I put in on delivery to be credited to me when I took the vehicle back. You cannot contact the CEO of the company but the customer services do not address the matter even after promising a resolution. I have been charged an extra 292km even though I only used 541km of the ****m I paid for. I am being charged an extra R764 petrol even though I spent R600 for petrol + extra as I did not get a car with a full tank. This company must be avoided as they can charge what they like as they get your bank details. I will not let this company ***** from me and will take it further.