(b) A corporation may accept from private agencies, corporations, associations, groups or individuals, payment for or on behalf of any subscriber of all or any part of the cost of subscriptions for direct health care services to be rendered: Provided, That no employer or sponsor may deduct the proportionate share of such payment attributable to any employee or subscriber from that employee's or subscriber's wages or salary, without the prior written consent of the employee or subscriber. It shall be unlawful for any governmental agency to pay subscriptions for or on behalf of any subscriber.