8 months and NO help at all!!!

I got a Samsung note 20 ultra 8 months ago. When I upgraded I was told I'd receive a voucher worth R999. I was called in, emailed in, had numerous people say they'd assist and get back to me and yet 8 months later still NOTHING!!!! 8 MONTHS of me constantly calling. This service has been absolutely disgusting and I feel that customer care honestly doesn't care at all. I realize it's not a big deal for you, but then don't advertise a service if you're not going to follow through. 8 months is a joke. I will never be going with Samsung again as mentioned above I have spoken to over 8 different people at Samsung and none of them bothered to help me. All words and no actions. The last time I got hold of them was in Feb. It's now April and again NO HELP!