Why this answer
What actually matters
- The controller must consider whether the request is complex or there are multiple requests and follow the extension requirements.
- The individual should be informed within the required initial period and given reasons.
- A large response pack is not itself proof of legal complexity.
What you could say
Keep the response tied to the actual rule.
Evidence
What to have beside you
- Original request/complaint and proof of receipt
- Every ID, clarification or extension message
- A list of data categories you know or reasonably expect to exist
- The response pack, redactions, file metadata and missing categories
If they still refuse
Move the dispute forward.
- Challenge the controller precisely: identify the missing data, disputed accuracy or rule you say has been misapplied.
- Use the organisation’s data-protection complaint route where appropriate.
- The ICO can consider data-protection compliance, but compensation normally requires a different route.
Read the full rules