LONDON (Standard&Poor's) May 5, 2015--Standard&Poor's Ratings Services today corrected by raising to 'BB+' from 'BB' its ratings on two legacy Upper Tier 2 debt issues of U.K.-based Barclays Bank PLC (A/Watch Neg/A-1). At the same time, we corrected by raising to 'BBB-' from 'BB+' our rating on an undated Lower Tier 2 instrument. The rating error occurred on Sept. 29, 2014, when we implemented a criteria revision affecting our ratings on the issues. The affected issues are: Variable rate Upper Tier 2 series 1 (ISIN: GB0000779529), Variable rate Upper Tier 2 series 2 (ISIN: GB0000777705), and Perpetual subordinated hybrid (ISIN: GB0000784164). The ratings on the Upper Tier 2 instruments are notched down from Barclays Bank's stand-alone