Various articles, including this one in the Guardian talk about this.

I’ve only ever sold a gig ticket once and it was for the face value (minus the booking fee, I might add) which was fine by me.

Resale platforms, such as StubHub and Viagogo, will be legally liable if sellers do not comply with the law. This also applies to Social Media selling.

Lets hope this stamps out the touts and makes it easier for true fans to get the tickets they want (and can afford).