If you are looking for a TEFL job in Bali, it is probably better to contact ESL schools, rather than hotels. Even at an ESL school, the chances of finding a job and a company that will get your working visa, is very slim.
The problem is the cost of working visas here for foreigners. Also there are plenty of qualified and skilled Indonesians looking for work.
How about this job?
http://www.globalexpatrecruiting.com/cm ... /jobid/267