If you wish for the Community Team (or higher) to check the logs and refund your lost item(s), it is indeed mandatory that you use the template below:
[b]Name:[/b]
[b]Steam ID:[/b]
[b]Time / Date of when it happened:[/b]
[b]Item/s lost:[/b]
[b]Server Name:[/b]
[b]Proof *VIDEO/PICTURES*:[/b]
[b]Story:[/b]
Best of luck!