Avis' Continue to Withhold my Refund

Avis continue to withhold my refund, with no explanation whatsoever not with any justification, are completely disinterested in resolving this matter and continue to respond to my requests with false information, despite following up with them daily. I have a credit invoice, confirming the refund due to me but Avis refuse to refund me. Avis' lack of customer service and staff incompetence, from the very beginning of this process on 20 November 2023, has been totally unacceptable. It has been confirmed with me, by many Avis members, that the refund was due to me some time ago, as per Avis policy. Hoping other consumers do not have to endure the same experience.