Worst customer service

I bought qualifying products and spent more than qualifying amount of money to receive Robux vouchers from Pick n Pay. They told me I don't qualifying to receive them because my smart shopper card needs to be linked to ASAP (which it is) and I have to be opted in to receive emails (which I am). They response to me was terrible and they didn't allow me a chance to respond. I tried calling their customer care line only to be cut off. I then decided to opt in again so I can buy again cause my child really wants this. To verify my identity an OTP is sent to a number I haven't used for almost 10 years and my smart shopper (which is linked to my Tyme Bank account) is linked to my current number. When I tried to get help with this it ended with me being told that I'm lying about my identity. This is truly terrible customer service. Pick n Pay has definitely lost me as a customer.