Useful documents for an initial review include passport pages with entry or exit stamps, boarding passes, booking confirmations and tickets, border confirmations, accommodation records and visa or residence-title documents. The key issue is the link to the particular border crossing. Depending on the journey, an individual document may be only one indication.
Also provide the authority's allegation, the stay calculation and any request for a statement. In a short chronology, mark the date shown in the EES, the date shown by the evidence and the number of stay days affected by the discrepancy.
Section 53 FPG links an entry ban to a return decision and relevant facts. A data correction therefore does not automatically rule out every measure. The authority must, however, examine the factual basis before deriving an overstay and further immigration consequences from a wrong exit date.