Before a bank shall begin to do business, the stockholders thereof shall hold a general meeting and adopt bylaws governing the corporation. A number of stockholders representing more than two-thirds of the paid-in capital shall be present at such meeting, and in order that any action taken shall be valid, the same must be approved by the affirmative vote of a majority of the stock present at said meeting. The bylaws of a bank may be amended in the manner provided for their approval. A meeting held to amend the articles of incorporation and bylaws shall be called at least ten days in advance, and the time and place of such meeting as well as the part which it is proposed to amend shall be stated in the call, but notice of said meeting may be waived by the written unanimous consent of the stockholders. This section shall apply only to banks organized under the laws of the United States Virgin Islands.