I'd echo everyone else in encouraging you to lower your prices! (or at least do some research into the local market). There are some great stylists here (though you have to know where to look), trained both here and abroad, who work at some beautiful salons, charging 1/3 of your prices. There are also a couple of expat hairdressers on this forum who posters usually rave about, and who charge (I think) about half your prices. So you've got some stiff competition...
I'm sure your target is the more prosperous expats population, but your prices are 1/10th/1/12th of what a lot of Argentines/peso earning expats make in a month!
research...