What the Sunday papers said

The Independent on Sunday: Glencore chief woos investors over merger

Glencore's boss Ivan Glasenberg will champion the commodity trader's proposed $90bn (£57bn) mining merger with Xstrata this week in a roadshow designed to win over doubtful City institutions to the deal. Mr Glasenberg has raised the hackles of some investors by not making himself available to assuage their doubts over the merger.

The Sunday Times: Vodafone may bid for Cable & Wireless

Vodafone is plotting a £700m bid for the embattled telecoms firm Cable & Wireless Worldwide. Voda has been tempted into a possible offer by the recent collapse in CWW's share price since its demerger in 2010 and could make a move if chief executive Gavin Darby stabilises the firm. Private equity firm Apax Partnersis also said to be considering a bid.

The Mail on Sunday: EDF complaints soar as staff face IT glitches

Customer complaints to French-owned energy supplier EDF have soared as staff battle with a new computer system, with some grievances taking as long as eight years to address, a whistleblower tells The Mail on Sunday. EDF – whose three call centres switchedto the new IT system lastJune – is already under investigation by the regulator, Ofgem, for the high level of customer complaints.

The Sunday Telegraph: RBS bankers arrested in tax investigation

Royal Bank of Scotland has been drawn into a criminal tax investigation after five current and former investment bankers were arrested over allegations that City financiers have been using film finance schemes to avoid paying taxes. More than 15 people are thought to be have been arrested in HMRC's ongoing tax evasion investigation.No charges have been brought against the suspects so far.