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We are constantly making changes to our service and strive to create an intuitive interface for your convenience.

Feel free to express your wishes. Email us if you have any idea how we can improve our service for you.

If you notice an error on the site, write to us and get an additional free lesson.

• 1 new critical error = 1 free lesson
• 2 new typos = 1 free lesson

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If you still have questions, write a message to jkeeng@jkeeng.com or use the feedback form "Contact Us"