Terrible, they didn't even tell me that I would have to work six days a week every other week or that I would have to work in another centre once a week.

Pretty straightforward. Audio Skype call with standard questions, then a week to prepare a lesson plan and another audio Skype call to talk about it. Then hired. They're always looking for new teachers, so don't hesitate to go for an interview. They'll rope you in quickly.