Support

Give it a minute and refresh — credits are granted when Stripe confirms payment, which is usually seconds. If it still isn’t there, email us with the receipt from Stripe and we’ll fix it the same day. Your payment is never lost: every purchase is recorded on Stripe’s side regardless of what our dashboard shows.

Unused credit packs refund themselves from Settings for 14 days — the button is next to the purchase. Details in the refund policy.

Settings → Manage subscription. Takes effect at the end of the paid period; your tracks and mastery are untouched.

The score is arithmetic over your answers, discounted where evidence is thin, and every factor is shown on the track page — click into a domain to see exactly what moved it. If a specific question was graded unfairly, use the flag on its review page; flagged questions get pulled from rotation.

It happens — the content is model-generated and we say so. Flag it on the question page and it leaves the rotation. Grading for numeric questions is checked by arithmetic, not by the model, so a right value in the wrong unit is still caught.

Yes — edit it on the track page and the curriculum regenerates. It does not cost another credit.

Email us from the account’s address and it’s done — deletion cascades through everything, per the privacy policy.

support@hardwareintern.com — a human reads it, usually within a day.