Hello,
In the more complex scenarios where exchange of projects is needed and possible bugs can be found (and where you want be sure noone else sees your source and data), I can recommend contacting our dedicated Developer Support department directly via this link:
http://devcenter.infragistics.com/Protected/SubmitSupportIssue.aspx
This way, you will have official support ticket with priority and tracking and will receive timely and guaranteed response from our support department (needless to say, everything you send is under NDA).