High street giant to challenge energy providers

File photo dated 11/01/17 of a Marks and Spencer store as the retailer has reported a 62.1% fall in pre-tax profit to £66.8 million in the year to March 31. PRESS ASSOCIATION Photo. Issue date: Wednesday May 23, 2018. See PA story CITY Marks. Photo credit should read: Charlotte Ball/PA Wire
File photo dated 11/01/17 of a Marks and Spencer store as the retailer has reported a 62.1% fall in pre-tax profit to £66.8 million in the year to March 31. PRESS ASSOCIATION Photo. Issue date: Wednesday May 23, 2018. See PA story CITY Marks. Photo credit should read: Charlotte Ball/PA Wire

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