In China there are many agencies that are hell-bent on selling foreigners' hides to any employer who needs foreign teachers. Agency staff will tell you things that will please you in order to sell you. But after you have arrived at your new workplace, you'll likely face the stark reality of your new situation as opposed to the falsehoods you'd previously been told about your new school. Just then, you'll realize you've been duped. But after all that travelling it's too late and also very inconvenient to do anything about it. When using agents, it's imperative to take heed of the next sentence. "Have stamped contracts in both Chinese and English, will travel. That should safeguard you from the ole 'bait and switch' routine. Bear in mind that some schools that rely on agents for their foreign teachers are not averse to pulling a fast one on you. If it ain't in Chinese and also in English with the school's stamp, it ain't worth the paper it's written on. As for oral promises, they're worthless too! Good luck with your jobseeking, and dispense with any agents whom you catch telling you lies without a moment's delay.