Sec. 25. A trust account may be paid, on request:
(1) to any trustee;
(2) unless the financial institution has received written notice that the beneficiary has a vested interest not dependent upon the beneficiary surviving the trustee, if proof of death is presented to the financial institution showing that the decedent was the survivor of all other persons named on the account either as trustee or beneficiary, to the personal representative or heirs of a deceased trustee; and
(3) upon presentation to the financial institution of proof of death showing that the beneficiary or beneficiaries survived all persons named as trustee, to the beneficiary or beneficiaries.