Last updated 9 September 2026
These are the terms you agree to when you book lessons with SumOf1 LLC. They are the same rules we already work by, written down.
Lessons are one-to-one and run on Zoom. Your first session is free, once, so you can see whether the tutor is a fit before paying anything.
A session is one hour. A two-hour lesson uses two sessions from your package. An odd length rounds up to the next half hour, so an eighty-minute lesson uses one and a half.
You buy a package of sessions. Your billing cycle starts on the day of your first lesson and runs to the same date the following month, so a family starting on the 19th is billed on the 19th. There is no calendar month and no mid-month proration.
Payment is by Zelle to info@sumof1.com, due at the start of each cycle.
Whatever you do not use in a cycle is added to your balance and stays there. There is no cap, no deadline, and nothing is written off. If a quiet month leaves you three sessions in hand, you keep those three sessions.
Rolled-over sessions are spent before anything counts as extra, so a family with a balance can take more lessons than their package in a month and owe nothing more.
Lessons beyond your package and your rolled-over balance are billed as extras, at the same per-session rate as the package you were on when you took them. They appear on your next invoice rather than the current one, so an amount you have already paid never changes after the fact.
Move or cancel any lesson at any time, with no cutoff and no penalty. Text the scheduling number and it will find you another time, or tell us and we will. A cancelled lesson stays on your package and rolls over like any unused session.
If the student has not joined within 15 minutes, the tutor may end the session, and it does not come off your package. You lose nothing. We would still rather you texted us, so the tutor gets their evening back and another family can use the time.
If the tutor cannot make it, that is on us. The session does not count, and we will rebook it or offer another tutor.
We text about a scheduled or billed lesson. That includes reminders and rescheduling replies, a short recap after each lesson, a bill with a secure pay link at the end of each package cycle and a thank-you once it's paid, a check-in on which package to renew, and updates about a session such as your tutor running late or a session being cancelled. If you fill out our contact form, we also text you about booking a free consultation, with follow-ups if you haven't booked yet. Message frequency varies, message and data rates may apply, and you can reply HELP for help or STOP at any time to stop receiving them. We do not send marketing texts. See our Privacy Policy for how we handle your number.
You can stop at any time and there is no notice period or termination fee. Any extra sessions already taught are billed once, on a final invoice. We do not refund unused sessions in cash, which is why they roll over indefinitely instead.
If we change anything that affects what you pay or what you get, we will tell you before it takes effect rather than quietly updating this page.
info@sumof1.com · (571) 442-1963