Brief: Vanquis Banking Says Gross Customer Interest Balances Grow To £2,313m In Qtr
May 14 (Reuters) - Vanquis Banking Group PLC VANQ.L: VANQUIS BANKING GRP - FIRST QUARTER TRADING STATEMENT VANQUIS BANKING GROUP PLC - GROSS CUSTOMER INTEREST BALANCES GROW TO £2,313M IN QUARTER Source text: ID:nRSN5227Ia Further company coverage: VANQ.L ((Reuters.Briefs@thomsonreuters.com;))