Choose by task
What do you need help with?
Prepare before you start
Keep flight numbers, scheduled and actual arrival times, airline correspondence and any evidence you already have ready before you start.
Continue saved progress
Work through one section at a time. Your progress saves as you go, and your outcome and documents remain available when the Resolution is complete.
Understand evidence
Each evidence item explains why it matters. Record only what you have; missing items remain visible so you know what could strengthen your Resolution.
No evidence file is uploaded in the current private beta.
Use an outcome or document
Start with your outcome and recommended action. Open a prepared document only after checking its purpose and action note.
Plain-language reference
Terms used in your Resolution
Resolution
Your saved work, assessment, outcome, next action and prepared documents together.
Outcome confidence
The confidence level attached to the current outcome. It describes the assessment of the information currently available.
Resolution Readiness
A measure of completeness and actionability. It is not legal confidence, probability of success or litigation risk.
Prepared document
A document created from the information saved in your Resolution. Review its purpose, recipient and action note before using it.
Frequently Asked Questions
Is Leterli legal advice?
No. Leterli helps organise information, explain a Resolution and prepare practical next steps. It does not replace independent legal advice.
Who can use the beta?
Only invited beta users can register and sign in. Join Beta requests help administrators decide who to invite next.
Which Resolution is supported now?
The current private beta supports Flight Delay Compensation for England and Wales.
Can I upload evidence?
The current beta records whether evidence is available. It does not yet store uploaded evidence files.
Need help with a Resolution?
Visit Support for help with access, progress, evidence, outcomes or documents.