The commission shall establish a reasonable aid to construction charge, not to exceed $3,000, to be assessed each petitioner. The commission may not require a designated provider to begin construction until:
(1) each petitioner has paid or executed an agreement acceptable to the provider to pay the aid to construction charge; and
(2) each petitioner has executed an assignable agreement for subscription to basic local service to the petitioning premises from the designated provider for a period at least equal to the period during which the provider will receive reimbursement for the original cost of deployment under Section 56.209(b).