This page explains which sources the articles use, how figures are presented and how errors are corrected.
Sources and figures
Product documentation, fee schedules and public rules are the preferred sources. Figures should identify the currency, calculation assumptions and relevant date. Hypothetical examples are labelled as such. A screenshot establishes only what is visible in it; it does not prove that a reader's account has been approved, linked to an invite code or granted a particular benefit.
Updates and corrections
When a rule, fee, calculation or instruction changes materially, the affected passage and its update date are revised. Reported errors are checked before the article and corrections record are updated. Send feedback to doll@dollarvaulthq.com.
Byline and promotional relationships
The site uses the pen name Qiao Dai; see the byline explanation. Factual claims rely on sources rather than unsupported personal stories. Promotional arrangements are described in the disclosure and noted beside the promotional link in the relevant article.
Scope of the articles
Articles do not promise returns or determine a reader's local legal obligations. This site does not open accounts or receive account credentials. Language versions of the same topic keep their facts, conditions and examples aligned. Each article addresses its own question without repeatedly expanding the same conclusion.
Updated 2026-09-09: clarified figures, screenshots, bylines and corrections.