BAD SERVICE NOT REFUNDING DEPOSIT

Good day, I rented a car from Avis JHB at the airport on 3 Dec 2024 booking + payment ref + Rental Agreement + Reg nr as per below: Booking + payment ***-3915-ZA-3 RA *** Reg nr.: ZABS40KZZN Since then I have renewed the agreememt monthly up until 2 May 2025, a new vehicle with a CAA426369 reg nr was issued to me in FEB 2025 due to a defective boot recall on the previous veh. The new and old rental vehicles were returned to the Strand branch in Western Cape to Innocent, RA nrs to follow for your ease of reference RA*** / RA*** .... I have not received my R6000 DEPOSIT refund paid on 3 December 2024, it has been over 2 months now since I returned the last issued vehicle and ended the agreement. Reported to customer service, they promised a refund within 7-10 working days which did not happen, customer service and the finance department have no answer. Pathetic service! Kindly revert back to me on what the hold up is and pay back my deposit urgently. Thank you, Hennie