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Questions about a file, your account, or billing — email us and a human will answer.

Email: support@dedupcsv.xyz

To help us reproduce a processing problem, please include:

  • The error message you saw, including any line number it mentions.
  • Your file's format and row count (do not email us your actual list if it contains personal data — a few sample rows with names changed are enough).
  • The matching settings you used (key columns, mode, threshold).

For billing questions, include the email address on your Paddle receipt. We aim to reply within two business days.