Most informal enterprises are small, with fewer than nine employees (IFC, 2013a). Companies in the informal sector face substantial obstacles, both financial - e.g. gaining access to external resources (IFC, 2013b) - and infrastructural -e.g. Nevertheless, the significant uptake of mobile phones (59% over 2006-11) among informal enterprises has a positive correlation with their sales (Paunov and Rollo, 2014).