100. (1) An official agent who wishes to order election expenses through a publicity agency must so inform the treasurer in writing.
(2) If it is shown to his satisfaction that it is a bonafide agency, the treasurer shall cause to be published in a newspaper circulated in the municipality a notice that the agency so designated is recognized as the mandatary of such official agent.
(3) All election expenses ordered by the agency so designated are deemed to be ordered by the official agent.
(4) The agency must remit to the official agent a detailed statement of the election expenses it has ordered. The statement must be in the form prescribed by the director general.