The concern of Benito Mussolini about the high emigration figures of the mid-1920s pushed the Fascist government's decision in 1927 to stop all migration to overseas countries, with rarely permitted exceptions, apart from female and minor close relatives (under-age sons, unmarried daughters of any age, parents and unmarried sisters without family in Italy) dependent on residents abroad. In the early 1920s Italians had found that it was not difficult to enter Australia, as there were no visa requirements. The Amending Immigration Act of 1924 prohibited the entry of migrants unless they had a written guarantee completed by a sponsor, an Atto di richiamo ('Call notice'). In this case, any migrant could come to Australia free of charge. Without a sponsor, the required landing money was ten pounds until 1924 and forty since 1925. O'Connor states: