False information upon joining

I am not happy with one of your partner's Sisonke Burial Society...I joined in October 2024...I had no idea that the waiting period is based on certain age groups because the print out that I recieved stated that all the people I covered have 6 months waiting period and even I sent the print out I received but I am still being referred to the pamphlet which was not properly explained to me how do I cancel and get all the refund since I was told that there is nothing that can be done to resolve this issue.