The Electric Reliability Council of Texas (ERCOT) does it for you. When you sign up for a plan with a new provider, ERCOT will send you a mailer confirming the switch. You have three days upon receiving the mailer to change your mind. If you don't, you'll have a new provider within seven days, and ERCOT will notify your old provider. Just remember, if you abandon a contract before it's complete, you will be on the hook for any fees or penalties detailed in its Terms of Service.
Both tariffs are available with either paper or paperless (online) billing. E.ON participates in the Warm Home Discount scheme for some customers. There are no exit fees if you decide to leave this supplier within 14 days. If you change your mind after that time, you’ll be charged exit fees of £25 per fuel. Exclusions apply, including the type of meter you own, so make sure you read the additional terms and conditions.