Information mishandling

I have been trying to receive an OTP from the Ucount Rewards online portal, I have tried since last week Thursday to no joy, this morning I contacted the Call center to receive assistance and to my horror, I discover that my details on the standard bank system was incorrect, and what I fail to understand is how?. I have been with this bank for a long time and ever since I opened my account none of my details have changed, thus, it begs the question, who changed my information and for what purpose. This is frustrating because I was told to wait a further 5-7 working days (excluding weekends) for your system to update my correct information, so I cannot access the Ucount rewards as intended. I now must wait even longer because the banks system is so slow, it take 5-7 working days to update. I cannot express my disappointment of how I chose such a slow bank in my life. I need your assistance to redeem rewards and cancel Ucount services immediately after. I refuse to pay for inaccessible benefits.