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How to contact support

Use the Help button in the bottom-right corner of any page. It works whether or not you are signed in, which matters if the thing you cannot do is sign in.

Pick what fits: something is broken, something is confusing, a math question looks wrong, or an idea. Attach a screenshot if you have one. It reaches the people who build this, not a queue.

There is no phone line. We are small, and a phone number we could not answer honestly would be worse than not having one.

What to include. What you expected, what happened instead, and which page you were on. If it is about a specific question, report it from that question so the exact item comes with it. If it is about billing, the account email. That is usually the difference between one reply and four.

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Did this answer it? If not, the Help button in the bottom-right corner of any page reaches a person, signed in or not.

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