Poor service for outstanding benefit payments

The service that I have received from Discovery Vitality/Bank on this matter has been shocking. It is hard to properly rate them since overall I am very happy, but the service on this matter has been terrible.

Discovery owes me a Gym Booster Benefit cashback that dates back to January 2021. I had to wait until May 2021 for a partial payment of the outstanding amount. I have had no explanation for the partial payment (as apposed to the full amount that is due). It is now August and I am still waiting for the balance of payment from January. And in addition the full benefit for August is outstanding.

I have sent 7 emails about this issue to Discovery since January with no joy. And I have lost count of the number of phone calls that I have made.

I am hoping that Discovery is still willing to resolve the issue. But for now it seems like Discovery is getting too big to properly support its existing customers.