Never will I use Avis again

I am not one to complain but my runway has run out. On the morning of 18 Feb 2022 we were in an accident on which our insurance gave me a loan vehicle. We first got a vehicle from Avis in Mosselbay (came from George), the vehicle had such a vibration that we had to take it back to Avis George. Then we’ve got another one in just a bad shape, had to swop it again as it was just not safe to drive in it. Eventually we’ve got a car that was save to drive with. Because of the mess made by die insurer Momentum my car took more than 3 months to be sorted. In which the loan vehicle was extended. At one point I got a sms to say I should return the vehicle, that was on a Saturday morning, and we were not home. So on Monday I’ve contacted my insurance as well as Avis because I still did not have a car. My broker spoke to Avis and they gave her the go ahead to keep the car for another 10 days. She had send me a message to say I should keep the car. I eventually ended up taking the car back because Avis took to long to give me the go ahead. We filled up ( I have the slip as we took a picture in front of the car when we returned it as we had to leave the keys in the box) the car and took it back, only to get an invoice from Avis. Saying that they had to put petrol in as well as that I was late returning it. My account was debited with R2300 immediately. I phoned Momentum send mails to Avis as well as Momentum and they told me on mail that the money will be paid back to me as this was between Momentum and Avis . This was In April we are in June, stille nobody has spoke to me regarding my payment. I have send mails to momentum as well as Avis , they do not even take the time to reply. I have everything on mail. If anyone needs to get information they can call me. I want my money back. Avis is quick to take money but the customer has to wait months to get reimbursed. Please can someone from Avis get them to immediately pay back my money?