Three "Ditch and switch" by Gravity Road

Four-time divorcee Joan Collins fronts a campaign that encourages people to dump their mobile network and switch to Three.

It coincides with an industry-wide change: from this week, mobile customers can switch networks simply by sending a free text message. The film, by Gravity Road, features Collins on a yacht in St Tropez, France, saying: "I’ve never settled for anyone or anything which didn’t float my boat… It’s now easier than ever to switch. So, darling, if they’re not satisfying you, then just… ghost them. So, take control – ditch and switch to Three." It was created by Sophie Cullinane and directed by Chris Faith.