Hi Guys,
I recently used the Banckle chat module and ran into the same problem where the widget was seen no where on the site. I looked in the code and found that its hard coded to be shown in footer region using hook_page_alter().
I frequently use omega theme & it doesn't contain any region called footer and there are may themes out there where you will face a similar if not exactly the same issue. I would suggest to to show the chat in page bottom. Alternatively you can even provide an option to choose the region.
I also needed a way to allow only anonymous users to access the support. So I also added a config for the same.
I am attaching a patch that addresses both of the issues. If you like you can merge it with your branch. ;-)
Thanks,
Swarad