Sanlam life claims not paying out after the death of a client

I had to deal with Sanlam Life claims after the death of my mother who had a policy with them. The list of beneficiaries included my younger sister passed on after just before my mother.

I have provided sanlam claims department with every shred of documentation they required however, no pay out is being made to my account. It has been more than 3 weeks of back to back emails to no avail. Each I call I am told the payment will be made the following and until now. No payment has been done, I am very disappointed as I am also a client of sanlam on other personal polices.