Avis OR Tambos' Customer Service is just revolting!

I am very frustrated with the Avis OR Tambo branch. I returned a vehicle on 18th January 2026. A week later i tried calling the *** number and the line either disconnects or just rings unanswered. i sent emails on 26th and 28th January requesting an invoice and trying to confirm receipt of the vehicle with no response to date. I eventually called the Customer Care line and a lovely lady confirmed that the ladies handling the Lease department were on leave, one after the other and she would try assist me with an invoice. Yesterday, 11 February i again called the Customer Care line and a Dumisani assisted me confirming that my refund had not yet being processed due to them awaiting a slip from where i made the payment before i can receive my refund and he will call me once this has been done. Its absolutely insane that its almost a month and i have not received my refund yet Avis takes their money immediately. And again when they eventually do process this refund i will have to wait another 10 day before it reflects in my account. Its absolutely insane and leaves such a bitter taste considering ive have such good relations with the Sandton branch.