Invalid Report: 76561198991693353 - ([TF2] Team Fortress 2 Items)

Unfortunately, SteamRep does not accept reports dealing with hijacking/phishing/hacking -Due to current Investigative Policy
http://forums.steamrep.com/threads/investigative-policy.140101/

This includes anything to do with API key requests, wrong or misspelled URL's and sites requesting logins of any type in attempts to steal your credentials.
These are phishing/hijacking attempts and are not to be reported to SteamRep!
This was clearly noted to you BEFORE You sent to submit the report - please do not ignore our policies/notifications that are there to read before submission.

You can report the user to Valve instead
In order to do that, you have to:
1. Visit the accuseds profile
2. Click MORE drop-down located at the top right of the page
3. Choose REPORT VIOLATION
4. Select the violation, then describe it and provide the evidence
5. Click SUBMIT REPORT

Click here to view an animated gif that shows how to report a violation.

This makes the 2nd such report in a few days you made that our polices clearly covered so you weren't supposed to submit the reports. Please do not submit a 3rd unless you've clearly read all our policy pages and it has all needed evidence and/or is covered for what we review.