received written reply vs received written replies

Question

A complete search of the internet has found these results:

received written reply is the most popular phrase on the web.

Some examples from the web:

I received an official written reply from the Commission.
I promptly received a written reply at the end of that Question Time.
Furthermore, unless I'm wrong, you already received a written reply at the beginning of the month on a question similar to the one that you have just asked.
Mr President, I have not yet received the written reply, as you might expect, and yet I have it here.
Now, given that we have still not received a written reply
at least not one that I have seen
I will take the liberty of quickly going over the points in this question.
At 11.28 this morning we received the following written reply from the services of this House:

Some examples from the web:

I received an official written reply from the Commission.
I promptly received a written reply at the end of that Question Time.
Furthermore, unless I'm wrong, you already received a written reply at the beginning of the month on a question similar to the one that you have just asked.
Mr President, I have not yet received the written reply, as you might expect, and yet I have it here.
Now, given that we have still not received a written reply
at least not one that I have seen
I will take the liberty of quickly going over the points in this question.
At 11.28 this morning we received the following written reply from the services of this House:

Answer 1

More popular!

received written reply

3,920 results on the web

Answer 2

2,590 results on the web