Absa Life Savings

My Father passed away 2021. He mentioned that he had savings and also a policy with absa life. After consulting at one of our nearest branch, I was informed that only 4 of his children are entitled to his savings. He left a will but my main concern is that there were two wills from Absa Life . One of those wills was not signed. The person who read out the will claimed that there was a mistake on the first one. I do have proof of the will which was not signed. The question was how did the deceased manage to leave with two wills, one signed and the other one not signed after setting up his will. After a thorough reading of the will I have also discovered that his savings do not form part of the will. So this means that all of his children are entitled to an equal share of his savings. We feel that the will was *****ulently administered and the matter should be looked into.