Avis refunds taking forever and no communication

Turnaround time on deposit refunds are ridiculously long. Vehicle was returned on the 26th of February and refund was confirmed the same day, however no deposit have been refunded yet. Myself and Flexclub have been sending emails and getting NO response. When I phone they struggle to find my profile (every time) and every agent gives a different response. According to the last conversation the payment was processed on the 4th of March but they only phoned me regarding my account details on the 5th of March..... I have received no refund yet which is ridiculous as payment is due immediately to Avis but refunds take forever! VERY disappointed and will NEVER use Avis or recommend their services.