Capture the complete offer
Save the offer name, URL, publication or review date, eligibility, qualifying deposit, wagering base, game contribution, maximum bet, expiry and withdrawal cap. Include the page header and footer so the screenshot is tied to the operator and campaign, not an isolated sentence.
Anchor the acceptance event
Keep the opt-in confirmation, code result, deposit receipt and account promotion entry with timestamps. Note the timezone and account currency. If the offer was assigned through support, preserve the case number and exact written confirmation.
Compare clauses precisely
When wording differs later, identify the exact clause, old wording, new wording and first observed date. Do not edit the original files. A cached search snippet or affiliate card is weaker than the operator terms accepted in the account, so use it only as supporting context.