Contact and report a calculation issue
Send a reproducible example or describe an input that is difficult to use.
Contact Luminesca
Email editor@luminesca.net. This is the existing Luminesca editorial contact. No response time is promised.
A useful correction report
Include the tool URL, input units, non-private test measurements, product specifications entered, expected arithmetic and the result you saw. A screenshot can show layout or wording problems, but it should not include your address or confidential project details.
Your project is private unless you choose to send it
The tools do not upload room measurements or project backups. This page has no web submission form. Opening the email link uses your email application; actually sending a message is your choice. Email may be processed by your and the recipient's mail providers. You do not need to send your complete JSON backup to report an issue.
Before making a purchase
Check product coverage, package dimensions, match and condition with the supplier. We cannot verify your measurements or approve a purchase through this site.