Please don't give anyone staff the authority to decide a punishment and at least confirm the ban or mute with 1 or 2 more staff members as most staff members turn out to be peoples friends and blindly mute or ban you for more time than required.
No staff will mute you for more than the actual muted or banned time the user deserves. If any staff do falsely ban/mute you for incorrect time just make an appeal at https://mccentral.org/community/forums/appeals/ and if you want to report the staff you can report them at https://mccentral.org/community/forums/reports-staff/. Mute/Ban system depends on many things such as severity, past punishments and stuff. So highly doubt they will purposely mute or ban you for more time than required. Have a good day!