CPP mis-selling; Haggle on the high street

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Card Protection Plan, or CPP, admitted miss-selling policies between 2005 and 2011 that duplicated the basic protection that comes with a bank account. The company said it would contact seven million customers. Now it's sending out letters and automatically renewing its cover. We get to bottom why customers of BrandAlley aren't receiving the goods they bought online. We'll get tips on how to haggle in huge high street chains and how the humble lightbulb could revolutionise data speeds. 'Li-Fi's creator, Professor Harald Hass, explains how the system works.