You pay from the date you become responsible for utilities at the address, which is your tenancy start date.
Your tenancy start date is the date you and other housemates become legally responsible for the property and the utilities at the address, so this is when you'll start paying for us to manage your bills.
Your landlord or letting agent will be able to give you opening meter readings, even if you're not moving in straight away. This makes sure we don't pay for any energy you didn't use.