The supplier has outlines plans to end sales through venue and events sales channels, such as selling to customers in shopping centres – with the potential loss of 450 jobs.
Tony Cocker, chief executive of Eon UK, said: “This is not a move we have taken lightly and we are fully aware this will be a difficult time for our colleagues potentially impacted by these changes.
“We can assure everyone affected that we will be providing as much support as we can.
“Our industry is changing and we need to look at how we deliver the best possible experience to our customers in the most effective and efficient way.
“It’s become increasingly clear that many of our customers want to contact us either online or over the phone, when seeking a new energy supplier.
“We need to respond to what our customers want and where we can we will.”