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Effective 18 September 2026

Choose a subject below. Do not include passwords, full voucher codes, identity documents or unnecessary sensitive data in ordinary email.

How to reach us

  • Account access
  • Mission support
  • Rejected submission
  • Reward or voucher
  • Privacy request
  • Security issue
  • Other enquiry

General support and disputes: hello@cornerbird.com

Privacy rights: privacy@cornerbird.com

Deadlines

  • Dispute a rejected submission within 14 calendar days of the rejection.
  • Report an invalid voucher within 30 calendar days after delivery.

Operator

Nestium Technologies OÜ
Registry code: 17500052

Harju maakond, Tallinn, Lasnamäe linnaosa, Katusepapi tn 6, 11412, Estonia

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How we handle personal data is described in our Privacy Policy. Marketing consent is not required to contact support.

Corner Bird

A European research panel for adults aged 18 and over.

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© 2026 Nestium Technologies OÜ. Corner Bird is a trading name of Nestium Technologies OÜ.
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Corner Bird uses necessary technologies to secure and operate the website. With your permission, we also use analytics to understand website use and advertising technologies to measure campaigns. You can accept, reject or customise optional technologies. Cookie settings · Privacy Policy

Corner Bird uses necessary technologies to secure and operate the website. With your permission, we also use analytics to understand website use and advertising technologies to measure campaigns. You can accept, reject or customise optional technologies. Cookie settings · Privacy Policy