Non-release of Card pre-authorisation

I obtained a rental car from Avis, Paarl in early October (arranged via CarSure). A pre-authorisation hold of R1 200-00 was placed on my FNB Business Cheque account. I returned the car to Avis Paarl on Wednesday 21 October. I was told that the hold could take UP TO 10 days to be released (already a very tardy timeline).<br> <br> It has been 20 days now and funds are still being /blocked. I have asked Avis for proof that they have done everything they should and not been given this.<br> <br> I have complained on Twitter and been told by Avis that it is FNB's fault. <br> Yesterday, FNB me advised in writing \The authorization has been placed by Avis and should be released by them".<br> So Avis is blaming FNB and FNB is blaming Avis.<br> <br> This is not acceptable customer service from Avis and it is DEFINITELY NOT evidence of a \""We try harder\"" ethic.<br> <br> As Avis has taken the pre-authorisation I expect AVIS to provide evidence to me that they have done EVERYTHING possible to resolve this with FNB and release my funds"