Hello,
A Mailing label can be any piece of paper with your detailed address printed on it, it can be a quarter part of an A4 sheet or a sticky label used for sticking on envelopes etc. If you cannot produce one in your native language! then both labels in English language will also be fine.
Regards,
fine for me,
but if u can't get it printed in ur official language, just write down by hand.
so, its ur address (1.in english, 2. in ur official language script) to be printed/written in a plain (A4) paper.
cheers
lamhey