Retail announced their merger to create Dixons Carphone. The merger completed on 7 August 2014. The Dixons Group staff moved into 1 Portal Way, the original home of Carphone Warehouse in West London, in May 2015. In May 2015, Carphone Warehouse launched iD Mobile, a mobile virtual network operator using Three's network. In April 2020, products and services from the O2 network ceased to be available from Carphone Warehouse after the companies were unable to reach a contractual agreement. Closure of stand-alone UK stores In March 2020, the company announced that they would be closing all 531 stand-alone UK stores the following month, with sales operations continuing within co-located "shops within shops" at Currys PC World stores and through the website. It was said that this measure was a result of the changing mobile market. Closure in Ireland On 21 April 2021, the company announced that the entire business in Ireland, including all 69 standalone stores in Ireland, 12 outlets within other stores, and the carphonewarehouse.ie website would close with immediate effect, with the loss of 486 jobs. The company stated the closures were in line with the decision to close all UK stores the previous year, with the changes in the mobile market and customer shopping behaviour being accelerated by the COVID-19 pandemic. Owner Dixons Carphone noted that it would continue to sell phones and accessories in Ireland through Currys PC World stores and the Currys website. Demergers and disposals On 8 May 2009, Carphone Warehouse agreed to pay £236m in cash for the United Kingdom assets of Tiscali, an Italian telecoms group. Tiscali UK later became part of TalkTalk. In March 2010, TalkTalk and Carphone Warehouse split and Dido Harding became CEO of TalkTalk, and Roger Taylor CEO of New Carphone Warehouse. Dunstone remained Chairman of both companies. On 30 April 2013, Carphone Warehouse agreed to purchase Best Buy's 50% stake in Best Buy Europe for £500 million. Carphone Warehouse owned 46% of Virgin Mobile France in a joint venture with Virgin Group. In June 2014, Carphone and Virgin agreed to sell Virgin Mobile France to Numericable for €325 million. French competition regulators, ARCEP, approved the deal in November 2014. Data protection issues During April 2005, customers who bought mobile phones from Carphone Warehouse retail outlets alleged that their landline accounts were subsequently switched without their consent. On 15 August 2006, the Information Commissioner's Office issued Preliminary Enforcement