Start with the commercial documents
Keep the contract, accepted quote, purchase order, invoice and agreed terms together. Record the legal identity of the customer and the address used for notices.
Show that performance occurred
Depending on the work, this may include delivery notes, timesheets, acceptance emails, completion certificates or other records showing what was supplied.
Build a dated communication timeline
Record reminders, replies, calls, promised payment dates, disputes and part-payments in chronological order. Keep the original messages and attachments, not only copied text.
Separate facts from conclusions
The pack should describe what happened without asserting that a court must agree. Highlight missing documents or unresolved disputes so they can be considered before escalation.
- Case summary and amount breakdown
- Contract and invoice
- Evidence of supply or completion
- Chronological communication schedule
- Payment promises and part-payments
- Copies of formal demands and delivery records