e-service developers DecisionSoft Ltd HMRC 2004-05-11 2007-01-10 text/xml http://www.w3.org/2001/XMLSchema XML Schema, W3C Recommendation 2001 [ISO 639-2/B] ENG HMRC PensionCore core-v2-0 ReliefAtSource (C) Crown Copyright 2004-5 Economics, Finance and Tax Pension Schemes Online Relief at Source message message