invitations system on PT

hi all
what is the invitations system on PT ?
mean how can I get the invite
thanx

Some torrent master you turned out to be:

http://filesharingtalk.com/vb3/f-bit...system--291565

http://filesharingtalk.com/vb3/f-bit...-invite-288314

basically pt staff dont give invite to users, who had invite before frozen invite system he can invite now (he must have l33t user rang) otherwise vips and staff have invites :P