For the purposes of this Act a) promotion of a candidate for the presidential office shall mean any public notification aimed at his/her support or serving for his benefit, for which a reward was, or is to be, paid, b) costs of promotion of a candidate for the presidential office shall mean a total of all pecuniary and other means estimable by money, used by a candidate for the presidential office for payment of paid advertisements or advertising in periodical press14), for payment of advertising or sponsoring of programmes in the radio or television broadcasting15), for payment of advertisements placed at public places and for payment of advertising programmes, posters, leaflets and other promotion materials and items, disregarding whether the payment obligation arose directly to the candidate for the presidential office or to third persons.