Service breakdown

I bought my car at Bidvest McCarthy GM Menlyn in March 2016 and took a Service Plan and Warranty for which I paid an additonal fee of R15023,17 on my purchase price. A year down the line I needed to service my car and since that branch closed down, we struggled to get a dealer that would service my car taking the service plan and warranty into consideration. Honda Auto Hatfield advised that they will service the car and get authorisation through the service plan and that they will only release the card upon payment. The service authorisation was approved on 19/1 and up to now 25/1 I have not received my car back due to inefficient staff at both IUA Business Solutions and Honda Auto Hatfield. Worst experience ever.