Post-judgment discovery is not permitted without a motion hearing scheduled before the court. If your name is listed on the account then you should be able to obtain statements directly. During the divorce, discovery requests are available with subpoena forms or a Request to Produce to the opposing party pursuant to the court rules:
Rule 2.302 General Rules Governing Discovery
(A) Availability of Discovery.
(1) After commencement of an action, parties may obtain discovery by any
means provided in subchapter 2.300 of these rules.
(2) In actions in the district court, no discovery is permitted before entry of
judgment except by leave of the court or on the stipulation of all parties. A
motion for discovery may not be filed unless the discovery sought has
previously been requested and refused.
(3) Notwithstanding the provisions of this or any other rule, discovery is not
permitted in actions in the small claims division of the district court or in civil
(4) After a postjudgment motion is filed pursuant to a domestic relations action
as defined by subchapter 3.200 of these rules, parties may obtain discovery by
any means provided in subchapter 2.300 of these rules.