Discovery Bank Service is appalling!

Discovery vitality (discovery bank) are robbing their paying customers. If you are not locked into the discovery eco system then look elsewhere. They promise rewards of up to 50-75 percent using their discovery bank product. To achieve this you have to spend large amounts on your credit card. When you achieve the discount, the cash back that is paid into your account is always incorrect (short by thousands of rands). The spend shows on their system and yet they are unable to resolve the cash back. I have open support tickets with them since July with no resolution. I have asked for a manger call back and they ignore it. Their emails promise 2-5 day turnaround time. You actually end up waiting months. If you follow up with them, they say that the ticket is open and there’s nothing they can do.