As a agnostic gnome wizard, I am able to bank in oggok because I think the bankers are on Clurg faction same as the guards. I can't sell to most merchants, but I can bank. Clurg is also a merchant so I can sell to him. I just had to kill the dwarf Dimlore Stormhammer in the steamfont minator caves like a gazzillion times. I am not sure if a euridite can since gnomes are more neutral than other races.
Of course, now the dwarves are not too fond of me, but that can be fixed with orcs/bone chips if I want the faction back.
http://wiki.project1999.com/Clurg