Compare the extract with the filing, the hearing record and your own notes. Mark whether the difference concerns the claim amount, basis, rank or a partial position. A general statement that the schedule is wrong rarely identifies the issue sufficiently for clarification.
Preserve both versions and prepare a short comparison note with the date and the exact passage concerned. This keeps clear which information appears in the extract and which statement differs in the creditor file.
If the entry cannot be allocated, first check the case reference, debtor and hearing date. Only then should the body responsible for the case receive a precise question about a missing or unclear entry.