A raft of law firms have bagged roles representing banks after the Office of Fair Trading launched a claim last week in relation to overdraft charges. Clifford Chance is advising Barclays, Slaughter and May is advising Nationwide and Addleshaw Goddard has been instructed by Clydesdale. Ashurst, Linklaters, Freshfields Bruckhaus Deringer and Lovells have also won roles advising Abbey National, Royal Bank of Scotland, HSBC and Lloyds TSB respectively.