How is “by return” used?

In The Wolf of Wall Street (2013), one line is: “And in return,”

Which movie is “by return” from?

The clip at the top of this page is from The Wolf of Wall Street (2013).

Modismo

using the next available post; as soon as possible

británico · Se oye en 541 películas

by return (of post)
using the next available post; as soon as possible
Please reply by return of post.

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

And in return,

En 7 películas · n.º 1