For some time I seek invitations on this tracker and without the result, why?

Lately it was: "Conclusion: Only invite people you know well and trust!
This is a limited offer valid until Monday, October 5, 23:59 (CEST)." And nonetheless heavily to get the invitation

My statistics
Code:
http://i36.tinypic.com/14spj6b.jpg
http://i35.tinypic.com/2a8rbwx.jpg
http://i37.tinypic.com/28umb5t.jpg
I would be grateful for the invitation

Greet