Contact
Found a number that looks wrong? That's the message we most want to receive — every constant on this site is documented in the methodology, so tell us which one and we'll check it against the source.
Write to hello@meltcheck.com for corrections, data questions, or partnership enquiries. Plain-text email, no forms, no ticket system.
Who you're writing to
MeltCheck is operated by Innomatrix Limited, registered in England & Wales, company number 16188012 (verifiable at Companies House). We publish reference and calculator sites; we don't buy or sell metal, and no buyer pays for placement here — the full policy is on the About page.
What we can't help with
We can't appraise your specific coin by email, authenticate rarities, or recommend a specific local buyer. For items that need grading, PCGS and NGC are the two services every serious buyer recognizes; for selling, start with the selling guide.