by return (of post)

by return (of post)

Through prompt mail correspondence back to the sender. Primarily heard in UK. Please indicate your interest in this offer by return of post.
See also: by, return
Farlex Dictionary of Idioms.

by reˈturn (of ˈpost)

(British English) using the next available post; as soon as possible: Please reply by return of post.
See also: by, return
Farlex Partner Idioms Dictionary
See also:
  • by return
  • by return mail and by return post
  • mail
  • by return mail
  • by return post
  • is that right
  • is that so
  • Is that so?
  • Is that a fact?
  • Is that what they're calling it these days?