And what are the other foreign teachers doing? Same situation or not? Did you do any reference checks prior to accepting the job? If so, what did former employees say? Either way, you need to give them an ultimatum. Give them a date to have the visa/paperwork in your hand and complete, or you walk. Make this date within the next 10 days. Anyone on the up and up doesn't take as long as you indicate (though you have no dates in your complaint). Your predictament is not new nor special - experience will make sure you don't do this again.