Credit Card ***** Non-Resolution

I logged a ***** claim with Standard Bank Credit Card division on 12th December 2022 for transactions **********ly processed on my Garage card. I received a sms on 26/12/22 informing me that the case had been resolved, and that my refund would reflect within 48 hours. A fraction of the claim was credited. I have subsequently phoned the ***** Division on three separate occasions, on 03/01/23, 05/01/23 and 06/01/23 and spent a total of 110 minutes on these call !!! I was informed by the bankers that I spoke to, that I would be contacted by the ***** investigators. This has not happened. I further sent an email to the ***** Mngt on 06/01/23 to which I also have not received a response. It is patently obvious that Standard Bank has no intention or desire to attempt to resolve this case, and treats me with total disdain by ignoring all my communication with them.