Mobile network service Giffgaff has appointed Fallon as its creative agency.
The appointment will see Fallon replace Albion London in being tasked with the creation and implementation of creative campaigns, starting immediately under the direction of chief marketing officer Emma Jenkins.
Gail Gallie, CEO of Fallon said: "giffgaff has a brilliantly innovative approach to their business, and have real ambition to challenge the category. We are thrilled to be working with them."
Giffgaff also works with Blue Rubicon and ARM.