A user registered a Release Deed but found an error in the Index-2 document, mistakenly listing the property as a 'flat' ('Sadanika') instead of 'commercial', and a location misspelling. The sub-registrar advised that a rectification/correction deed, costing £500 stamp duty and £100 registration, is the solution. Although the main Release Deed is accurate, the user is concerned about future saleability and seeks confirmation on whether this rectification deed is necessary.