"Your assistance in this matter is greatly appreciated"
About the phrase "Your assistance in this matter is greatly appreciated",
In what situations would you use this phrase?

Thank you so much for reading, everyone.

Question

"Your assistance in this matter is greatly appreciated"
About the phrase "Your assistance in this matter is greatly appreciated",
In what situations would you use this phrase?

Thank you so much for reading, everyone.

Answer

You would use it at the end of a formal letter or message which requires/has required the reader to take some course of action.  Strictly speaking, if the action is anticipated, or requested, it should read  "Your assistance in this matter would be greatly appreciated"