Poor and stupid service

As usual, poor service from Discovery. I don't expect good service from them but this time it worse than ultra poor service. Was not aware that they hire people who are *********** to understand matters or English, whatever the case may be. This complaint is for the HealthyDIning product which they advertise and boost at the participating restaurants. They are refusing to pay me the cashback percentage for the qualified meals. They come up with new excuses on each mail response which I receive from them. I mean how can a company make new excuses to not pay, each time, for the one simple claim? Each time I correct them, they come up with new nonsense to not pay me. I would not recommend Discovery all in all. If I don't have this sorted I'll even go on and plan for cancelling all my products with Discovery. I can not pay you over R7000 each month so that I get *** service from your *********** people. All I expect is service and a resolution to my issues. Or at least provide good sensible reasons.