A nonstock corporation may enter into contracts with similar nonstock corporations for the interchange of services to those included in subscription contracts and may provide in subscription contracts for the substitution of services instead of those recited in its subscription contracts. However, no corporation shall enter into any contract to acquire or to attempt to acquire control, as defined in § 38.2-1322, of any person or enter into any material transaction, as defined in § 38.2-1322, if such contract or transaction would jeopardize or adversely affect the interests of the corporation’s subscribers as determined by the Commission.