My son's father passed away 3 yrs ago. we were seperated but not divorced and no plan to get divorced. i believe our son was beneficiary of superannuation but dont know which fund. his family and I dont really speak and they were not impressed that I was still nominated next of kin. at one point they asked me to sign something giving them power of attorney but i refused. How do i find out and put in a claim. is there somehow they may have done this?