Complaint of a very bad service with no signs of a resolution.

I have registered for the Greenbacks rewards program and I am paying the monthly costs, however it seems Nedbank card division has not been crediting me with the Greenback points I have earned via my secondary card. I have made a few calls and sent a few emails with out any success of a resolution. I have been speaking to the call center agents and had to repeat myself every time, I have even spoken to a supervisor unsuccessfully. My request to speak to manager seems like was not granted, I started the query on the 11th November 2019 and my issue as I found out was going back from September 2019. I have reference numbers and the names of some of the agents I have spoken to. Card Division cannot provide me with a statement of the points given in comparison with the successful transactions on my card. I advise all Nedbank clients to carefully check their points whether it via the money app or the greenbacks point app.