No minutes / data allocated after paying for Super Flex

I paid for my super flex plan on 27 September 2024, unfortunately no minutes and data was allocated. I have called support on numerous occasions, they keep asking for proof of payment which I have done and emailed to 3 different consultants. A week has passed and I am still waiting for my refund. It's seems like they don't respond to emails and have no intention to return your calls. I am very disappointed with their service.