Mexico - Left luggage at MEX T2

There appears to be a left luggage facility (Kokai) at MEX T2 but not much detail and I don't speak Spanish well enough to call up and ask. Does anyone know their rates and whether they can hold a bag for 2 weeks, and if it's reasonably secure (we'll only be leaving winter clothes).

http://www.aicm.com.mx/servicioausuarios/index.php?Servicios=EQUIPAJE&Grupo=5

I'll be at T2 on Monday (Oct 12). If I have time and if I think of it I will drop by the left luggage place and ask. Otherwise, can't you find some kind friend who speaks Spanish to make a quick phone call for you?