Looking on the internet deeply has found these results:

your help and support is greatly appreciated. is the most popular phrase on the web.

your help and support are greatly appreciated. 13,640 results on the web	your help and support is greatly appreciated. 114,200 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.	Support for other platforms is in progress. Your help is greatly appreciated. I would like to add in all modesty that at least in the Netherlands, his work has always been greatly appreciated. More generally, Parliament's strong support for our efforts is greatly appreciated. awfulness is much appreciated. I believe that the role it plays towards the outside, expressing the views and the criteria of the eurozone countries, is greatly appreciated. Your help and general non and still is

your help and support are greatly appreciated.

13,640 results on the web

your help and support is greatly appreciated.

114,200 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.

Support for other platforms is in progress. Your help is greatly appreciated.
I would like to add in all modesty that at least in the Netherlands, his work has always been
greatly appreciated.
More generally, Parliament's strong support for our efforts is greatly appreciated.
awfulness is much appreciated.
I believe that the role it plays towards the outside, expressing the views and the criteria of the eurozone countries, is greatly appreciated.
Your help and general non
and still is