After the initial balloting, a cooperative may offer extended local calling services, offer new services on an optional basis, or make changes in its rates or tariffs if the cooperative:
(1) files a statement of intent under Section 53.355;
(2) provides notice of the proposed action to each customer and municipality as prescribed by Section 53.356; and
(3) files with the commission affidavits verifying that notice was provided as prescribed by Section 53.357.