When reporting a user you should obey to these rules mentioned in the section otherwise The thread will be ignored and closed.

-You Post the username of the potential ripper and link to it's profile.

-You Post the AIM , JABBER or ICQ of the potential ripper.

-Description of the Report / Briefly and in a clear matter to be understandable without long talk.

-You post screen shoots and any other useful information to support your claim ( payment details, logs etc..)

Example :

username: xxxxx
link to profile: xxxxx
ICQ/Jabber: xxxx
Description : For example : " This user "xxx" ripped me amount "xxx" for a yyyy service , he didn't deliver it as promised, i didn't receive it on time, blocked me icq.. etc