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Guidance on submitting customer complaints data

Publication type:
Guidance
Publication date:
Last updated:
Industry sector:
Supply and Retail Market
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This guidance explains how suppliers must submit customer complaints data to us.

Details

The guidance describes the requested data and how to submit it. It contains:

  • guidance and instructions for suppliers on how to submit customer complaint information to us
  • a template for completing monthly returns
  • a template for completing quarterly returns

 

 

All updates

4 November 2025 guidance updated and new templates added for completing monthly and quarterly returns