I took a policy with Sanlam to pay for the administration of my estate when I eventually pass on

I took a policy with Sanlam to pay for the administration of my estate when I eventually pass on. However I’m disappointed that they will charge on this policy before my will which they are busy assisting me with is finalised. Why should I pay for such policy before my will Is finalised. The right this for them is to implement the policy once the will is finalised. I think it’s ************ of them to enforce the policy before the new will is in place. I’ve been going back and forth with them in finalising my will and they have been unable to incorporate my wishes as discussed with them. I’m concerned if I were to die now my wishes will not be honoured because of their inefficiency