This is Money: Well over half the complaints made against the taxman are upheld by HM Revenue & Customs’ own internal complaints system. Of 58,110 complaints received in the year to the end of March 2011, HMRC found against itself in 57 per cent of cases, while its performance is getting steadily worse, according to internal data.
Full story: http://www.thisismoney.co.uk/news/article-2200671/HM-Revenue-Customs-admit-wrong-majority-complaints.html