A. Service of citation or other process on a domestic or foreign corporation is made by personal service on any one of its agents for service of process.B. If the corporation has failed to designate an agent for service of process, if there is no registered agent by reason of death, resignation, or removal, or if the person attempting to make service certifies that he is unable, after due diligence, to serve the designated agent, service of the citation or other process may be made by any of the following methods:
(1) By personal service on any officer, or director, or on any person named as such in the last report filed with the secretary of state.(2) By personal service on any employee of suitable age and discretion at any place where the business of the corporation is regularly conducted.(3) By service of process under the provisions of R.S. 13:3204, if the corporation is subject to the provisions of R.S. 13:3201.C. Service of citation or other process on a bank is made pursuant to R.S. 6:285(C).