There's a few ways that you can contact your supplier, or a prospective future supplier you're looking to switch to, but the quickest way is by phone. Below you'll find a list of all of the current suppliers on the market, along with their phone number*.

Boost: 0330 102 7517

British Gas/Scottish Gas: 0330 100 0056

Co-operative Energy: 0808 164 1088

E: 0333 103 9575

E.on Next: 0808 501 5200

Ebico Living: 0300 004 0308

Ecotricity: 0345 5557 100

EDF Energy: 0333 200 5100

Good Energy: 0345 034 2404

100Green (previously Green Energy UK): 0192 048 6156

Octopus Energy: 0808 164 1088

Outfox the Market: 0800 103 2702

Ovo Energy: 0330 303 5063

Sainsbury's Energy: 0808 501 5277

Scottish Power: 0345 270 0700

So Energy: 0330 111 5050

The Utility Warehouse (Telecom Plus): 0333 777 0777

Utilita: 0330 333 7442

*Phone numbers and suppliers correct at the time of this support article being written.