Under this article no contribution shall be made, directly or indirectly, by any person or combination of persons acting jointly in a name other than the name by which they are identified for legal purposes nor in the name of another person or received from another person on the condition that it be used as a contribution. If it is discovered by a candidate or committee treasurer that a contribution has been received in violation of this article, the candidate or treasurer shall promptly pay the amount received in violation of this article to the City Treasurer for deposit in the general fund of the city.