How can I break this to you gently, Esteban Guitars are ( insert several strong expletives of your choice) awful.
There is a huge publicity circus based round this Joe dressed up like Zorro and all manner of hype and rubbish all aimed at selling appalling instruments with a well recorded history of self destructing when an attempt is made to tune them.
I would gently advise your friend to move immediately to plan b.
Some acoustic forums run threads with competitions for uses for defunct Estebans, eg bird houses, geranium pots, rodent traps - but the most popular suggestion seems to be kindling.
Sorry for your friends daughter