Micca, that can't be.

Either it is pronounced English, then it is
nine, double-u (or in a German way of writing it "accoustically")
Nein dabbeljuuh

Or it is pronounced German, then it is
Neun we.

"Neun" is pronounced very different from "nein".

German "eu" is pronounced like "oy" in the English word "boy".
German "ei" is pronounced like "i" in the English word "nine".

so we have "noyne" as opposed to "nine".

Not very similar.