(a) Service of process in any suit, action or proceeding or service of any notice or demand required or permitted by law to be served on a foreign corporation may be made on a foreign bank holding a certificate of authority pursuant to this subchapter by service thereof on the registered agent of such foreign bank. Whenever any foreign bank holding a certificate of authority fails to appoint or maintain a registered agent upon whom service of legal process or service of any such notice or demand may be had, or whenever such registered agent cannot with reasonable diligence be found at the registered office of such foreign bank, or whenever the certificate of authority of any such foreign bank is revoked, then in every such case the Commissioner shall be irrevocably authorized as the agent and representative of such foreign bank to accept service of any process or service of any notice or demand required or permitted by law to be served on such foreign bank. Service on the Commissioner of any such process, notice or demand against any such foreign bank shall be made by delivering to and leaving with the Commissioner, or with any official having charge of the banking department of the Commissioner's office, duplicate copies of such process, notice or demand. If any process, notice or demand is served on the Commissioner, a copy thereof shall immediately be forwarded by registered mail addressed to such foreign bank at its principal office as the same appears on the Commissioner's records.
(b) Nothing in this subchapter limits or affects the right to serve any process, notice or demand required or permitted by law to be served upon a foreign corporation in any other manner now or hereafter permitted by law.
(c) The Commissioner shall keep a record of all processes, notice and demands served pursuant to this section and shall record therein the time of such service and the action taken with reference thereto.