Due to the high number of applications the schools receive they may not be able to respond to every application. If you don't hear back from them within a week or so, it's best to move on to the next job.

When applying for jobs, you should NEVER have to pay to apply. You should also NEVER have to pay to buy anything which they then pay you back for later. NEVER PAY FOR ANYTHING! Also always verify you're actually talking to the company in the job post and not an imposter. Scams in TEFL are rampant, be careful!