Support
Email us at support@theblackindex.org and we will reply within 48 hours. For the fastest help, include the link to the post or page you are asking about.
Found a mistake in a chart or a number?
Tell us. Send the link to the post and what looks wrong. If we got something wrong, we will correct it and note the correction on the post.
Membership questions
These answers describe how membership works.
What does membership include?
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How much is it, and how do I pay?
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Does it renew automatically?
No. It never renews by itself. We may email you a reminder before it ends, and you can renew by paying again.
How do I get a refund?
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I did not get my verification code.
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How do I change my email address?
Open your membership page and choose Change email. Enter the new address and your password, then the six digit code we send to the new address. We also send a note to your old address.
How do I delete a comment, or my account?
Use the Delete link under your comment. To delete your account, email us.
How do I report a comment?
Use the Report link under it.
Where does the data come from?
Every post names its source and links to it. The data behind each chart can be downloaded from the link under the chart.
Know of a dataset we should look at?
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More
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