I have already bought Tutor service. Do I have to inform my tutor in advance everytime I have questions or need correction, feedback for my assignments?

There’s no need for you to inform in advance. After you do exercises and assignments, they will be saved in ezV’s system. Tutors will find and correct them as soon as possible. Furthermore, ezV tutors will answer any questions you have within 24 hours. So, please feel free to contact us whenever you want.