Awesome Site! But brand new to it and how it works

Hi all,
Ran into this website by pure chance! Love at first site.
Perhaps 1 of u can guide me. I have an iphone 5C that i bought in Chile. I am currently abroad and I cannot use it bc it is only unlocked for all Chilean carriers but not elsewhere. Is there any way I can get this done? :confused:
I contacted the carrier in Chile but they said that I need to take the phone there to have it unlocked. 😡 Is this true? Any help highly appreciated!
Many thanks!! Btw, this site rocks!! 😎