Inefficient service!!!

Avis has given us the worst service ever. In January my parents rented a car and paid a refundable deposit to them. The car was returned in February and they were told the funds would be refunded into their account in 7 to 10 working days. It has been a month and the amount has still not been refund.

No one bothers to follow up with my parents unless they waste their time and petrol to go to the George Avis offices to enquire about the money. Each time the agents informs them that they had a problem with the card details, yet no corresponds with my parents with regards to this until they ask. We have corrected and given through the card details THREE times already but still nothing!!This is ridiculous! We have spoken to a gentleman named Peter but he does not respond to emails!!! I expect this to be sorted out soon.