Yes, your paper is confidential.
Tutors will not share personal information about any student, including their use or non-use of the WriteAway service, without express permission from the student.
WriteAway tutors focus on helping individual students develop their own writing skills. Tutors can review individually-authored sections of group work, but cannot comment on assignments where more than on student has contributed writing. Group members are welcome to submit their own portions of the assignment. Your group might also consider visiting your in-person institutional writing centre as a team.
Unfortunately WriteAway tutors cannot help you with your take-home exam.