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Contact

Use this page for calculator corrections, guide feedback, missing-tool requests, and privacy questions.

Email

Write to shoaib.octachat@gmail.com. We aim to reply to clear, actionable messages. The form below sends your message by email — we do not keep a separate database of submissions.

What to include

  • The calculator or guide URL
  • The inputs you used (if reporting a calculation issue)
  • What you expected versus what you saw

For privacy or data requests, say so in the subject line so we can prioritise them.

Messages are emailed to shoaib.octachat@gmail.com. We use your email only to reply.