*Consumer costs up by 180 mln pounds 2007-2011- Competition Commission. LONDON/ FRANKFURT, May 21- Britain's dominant cement makers could be forced to sell off plants to tackle a lack of competition which regulators say has cost customers hundreds of millions of pounds.
ROME-- Italy's antitrust agency has fined Telecom Italia 103.79 million euros, alleging that the Italian telecommunications company abused its dominant market position.
MILAN/ ROME, May 10- Italy's Antitrust Authority on Friday fined Telecom Italia 103.8 million euros for abusing its dominant market position as owner and manager of the country's fixed-line telephone network.