Aside from the registration fee, what other fees do we have to prepare and how much?

You will have to retake the level. First retake will be free. Any retake beyond that will be charged 50% of the tuition fee.

No it is not.

Though you don’t have major exams from A1-B1 courses, you are still required to have satisfactory performance in quizzes, exercises, and homework to pass each level. The only major exam we prepare you for is […]

As early as your first few weeks in A1 and as late as after your B2 exam, you already will have had your interview and have an employer.