Shocking customer service.

Shocking customer service l've ever received, I have had no response from them after sending so many emails, they don't want to settle their bill with Avis, l've been fighting the matter since March last year .I call and hold until the line cuts off, I don't know what to do anymore.I want to cancel everything I have with momentum, I'm so drained. @ Elsi Mahlangu, Jack Molala, Basetsana Khalo, Maggie Dlamini, Please advise when are you going to resolve this matter, Avis have taken legal actions against me, I'm so tired of sending emails with no response,