Pathetic Service - Non payment of Deposit and No one to assist with query

I rented a car with Thrifty Car rental at Lanseria Airport on the 12th November 2021, the deposit amount required and paid was R6000. The car was returned on the 19th November and I was told that I should expect refund of deposit within 14 days. It's a month later and I have still not received my deposit. I have tried numerous times to get through to their refund department, I was successful once after calling for days without answer and this was on the Monday of 6th December. The lady I spoke to advised that she will send my request through for payment immediately as it was supposed to have been paid. It's been a week since she said this and still no payment of deposit.

I have been trying daily now calling their line *** and selecting the refund department option 3 and there is no answer. Even when I don't select anything to hold for an agent, there's still no answer. I even selected option 1 for reservations just to speak to someone, the lady was honest enough to tell me that they have been receiving numerous complaints that no one from Refunds is answering and admitted that there is No 1 there to answer. I asked her to give me someone's direct line who can help, even the branch itself and she advised that there are no direct lines. So what now Thrifty? You still have my deposit a whole month after your vehicle was returned and you don't have anyone to answer your phones and deal with these kind of queries??? This is truly pathetic to say the least. I regret ever coming to you for car rental. Should have stuck with Avis, your service is beyond pathetic.