1) Sounds like the normal "Invisible" walls preventing you from going places you shouldn't. Not sure why you are getting this though, as taht shouldn't be happening in the place you describe.
2) Is a known bug. Sometimes (usually quite rare) when logging in since Rohan, your client isn't passed information about you kinship, user channels etc. What this means, is that while others can see you online (but can't send you tells, inspect you etc), your game client thinks you are not in a kinship, and will tell you such when opening the kinship panel or trying to speak into chat. Relogging your character from the character select screen will solve this until it gets fixed properly.
3) If you can't send a normal ticket, although it's probably slightly inaccurate for the situation you describe, right click their name in chat and "Report Gold Seller"
[SIZE=3][b]Leader of [COLOR="#FFD700"]The Rangers of Eriador[/COLOR], Snowbourn[/b][/SIZE]
[color=#00BF00]Brya, Balthelion, Fyore, Iarngard, Madic, Eoradain, Trystana, Pendalas, Kharmul, Arkunir, Holibrand, Tifridh, Freawyn, Adlanniel, Tiraniel, Lilija, Theda[/color]
[URL="http://www.youtube.com/playlist?list=PL0szyANQhriMn42fCDdke1EMAOcdzmr9v"]Let's Play LOTRO (YouTube Series)[/URL] ~ [URL="https://www.lotro.com/forums/showthread.php?461498-The-Rangers-of-Eriador"]Kin Info/Recruitment[/URL]