Today: a global pistachio shortage due to a TikTok trend; Donald Trump's row with the Fed boss causes market alarm; M&S sorry over payment glitch; a reader is seeking money back from Ryanair in ...

Its shares were down 9%. Octopus Energy was only set up in 2015 but has shaken up the energy market. Its website boasts of being the UK's "most awarded energy supplier" and promises cheap ...