Well done! I am delighted that all went well whistle. I hear so many bad hagwon stories and I'm glad that yours wasn't one of them. It's great that they really want you to stay and as Sue said never let them walk all over you. As I said before - they want you but you can find a job anywhere. I hope that there will be some serious changes on their behalf.
Best of luck,
LiK
On btw, now you know what to save up for - an apartment so that this can never happen again!