Holding Rental Deposit

Avis is giving me a run around with my holding deposit of an amount of R4650 .I hired the car on the 3/06/24 and returned it on the 5/06/24. Was notified that I will receive back my deposit 14 days after the car return. I made a follow up on the 19/06/24 and was told it is with the finance and I should be getting it on the 21/06/24. Made a follow up again on the 25/06/24 and was told that my bank rejected the money and now is on hold with their finance and I must not worry the money will be released and I should be getting the money on the 28/06/24. Made follow up on the 02/07/24 was told that the money is released and should reflect on my account on the 05/07/24. Come the 05/07/24 no money in the bank and my bank doesn't have any record of money rejected from Avis by the bank and no records of refunded money or whatsoever from Avis. When I make follow-up with Avis,according to them the money was paid on the 02/07/24 and I asked for proof of payment and got a run around about that,being told this and that. Even now no refund of my deposit and no proof of payment received. I am so disappointed that they were quick to send me an email to rate their service and rated them well based on service at the Branch. Could they have asked me to rate them now ,it was gonna be a different story. I feel like am dealing with a fly by night rental company. My Bank recommend Avis and I trusted them as they are a big , well known company. My experience with me getting my deserved deposit it is so disappointing and no transparency at all of where is the money and why am I not getting my money whereas I took care of their car and returned it a good ,washed condition as I took it. Will I ever get my deposit back?I am so hopeless.