It doesn't look very good, does it? It would really help if you gave some idea of how often it's watered, how much sun it's getting, humidity, and what kind of soil mix it's in (though you probably haven't a clue :-). It may be a Serrisa, but in it's present state it's hard to tell. If it's a Serissa, I suggest you look at www.bonsai4me.com for a species care sheet.