(a) Notice to the independent executor required by Sections 403.052 and 403.055 must be contained in:
(1) a written instrument that complies with Section 355.004 and is sent by a qualified delivery method to the independent executor or the executor's attorney;
(2) a pleading filed in a lawsuit with respect to the claim; or
(3) a written instrument that complies with Section 355.004 or a pleading filed in the court in which the administration of the estate is pending.
(b) This section does not exempt a creditor who elects matured secured status from the filing requirements of Section 403.052, to the extent those requirements are applicable.