Unsatisfactory response from Avis Car Hire

On 18 April i hired a car with Avis in Centurion, there was an initial holding deposit of R2 275, subsequently after extending and all an amount of R1 565.15 was debited an amount of R1 406.66 is recorded on the statements with an authorisaiton code but the money is still not reflecting in my account for the past month and i have liaised with my bank as well as Avis and i keep on being taken form pillar to post and the consultants at the branch call the customer service people and they say that they have done all they need on their part and that the issue is not theirs however when holding fees were done and taken this was not the attitude received now that im inquiring about how to get the money reflecting on my end i have people not giving me answers to an extent one consultant when i was at the branch on 25 May 2018 said to me i will never see that money when i asked what she meant she directed me to be helped by someone else. What is constantly being mentioned is that if you pay with a cheque card a manual reversal will need to be done but as a customer i feel that im not getting the service required and no direct answers and this is not client centricity at all