Not sure what you mean by frozen between khemi and khitai - if you mean on the silk road trying to get to Gateway to Khitai, then usually relogging will put my character back at Khemi. Also dying tends to do the same. If you have failed the quest, then the NPC may still take you onto Gateway or you will find he sends you back to Khemi.
But regardless, can you not use your path of asura to zone? Or perhaps a teleport coin port?
In the support section, Christa (a Funcom employee) put a post on how to contact Funcom. In that they have their help page so you can email them, this is:
And if you are able to …change the location of this post from General Discussion to Support …
The /petition system interface seems to be the same for me as it always has been…no changes. I just tried /petition ingame and it initially “hung” but came up within 10sec alright for me … I’m using Stonerune UI. So I am guessing it’s your UI maybe. Also see if the /petition system works on your non-Saga toons or is also unavailable to try and diagnose if it is your custom UI or an interaction between your custom UI and the Saga character.
If it will work on your non-Saga character, then I suggest that you write a /petition on one of those stating that your Saga character (name x) is stuck between Khemi and Gateway to khitai and you can not initiate a petition on that character for some strange reason. As I know in the past GMs have contacted me on a different character than I initiated the petition to follow up on the petition.