Octopus Energy was only set up in 2015 but has shaken up the energy ... you and the business", Machin said in the email, seen by Sky News. Sky News has contacted Marks & Spencer for comment.

Up-to-date figures on the industry's advertising budget are not publicly available, but spending was estimated to be at £1.5bn in 2017 when analysed by research firm Regulus Partners.

The Reds are reportedly closing in on a deal to sign Matheus Cunha from Wolves after being ‘swayed’ by Ruben Amorim following the pair's meet-up in last weekend's Premier League fixture.