Greenback ****py Product

I am furious at you *********** service I got from your Agent Nompumelelo Gigaba. How is that you have a product and yet cant manage it properly. I made a purchase for R612 and got 241 points, R2755 and got 275 points and another R1909 got 190 point. how accurate is this point system cause clearly there's discrepancy its crazy. and the Agent said she logged a call to date still no response. i use my airtime holding forever with no resolution.