Features
- 20 lessons (the minimum the student can take as reinforcement lessons with group lessons
- 30 lessons (which is a full level of the language) extend its validity is 4 months from the time of registration
- 31-50 Studied and valid for 6 months from the time of registration
- 51-70 Studied and valid for 9 months from the time of registration
- 70 lessons or more, the validity period is 12 months from the time of registration