From ACT Wiki
1. UK tax - stamp duty.
The process in stamp duty whereby the document and supporting evidence is sent to His Majesty's Revenue & Customs to determine the amount of stamp duty payable.
The settlement of a dispute by a formal legal procedure.
3. Dispute resolution - less formal procedures.
More generally, the settlement of disputes by various less formal procedures, with the aim of providing quicker, cheaper and less confrontational resolutions.