Looking on the internet deeply has found these results:

an intermediary is the most popular phrase on the web.

a intermediary 149,900 results on the web	an intermediary 15,050,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	So they probably used an intermediary. Everything was handled through an intermediary, a woman. This Directive should however also apply when one of the marketing stages involves an intermediary. Article 10 Indirect holding of minimum reserves through an intermediary 1. It usually goes through an intermediary. The notion of end users also encompasses consumers who purchase through an intermediary. In this area, as in many others, the Union is only an intermediary. Some men find it hard to speak their love, except through an intermediary.

a intermediary

149,900 results on the web

an intermediary

15,050,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

So they probably used an intermediary.
Everything was handled through an intermediary, a woman.
This Directive should however also apply when one of the marketing stages involves an intermediary.
Article 10 Indirect holding of minimum reserves through an intermediary 1.
It usually goes through an intermediary.
The notion of end users also encompasses consumers who purchase through an intermediary.
In this area, as in many others, the Union is only an intermediary.
Some men find it hard to speak their love, except through an intermediary.