The charges for your BT package will appear on your main bill.
We'll only charge you for your package from the date when all your package services are available. However, your telephone line rental charges will start from the date when your BT phone line is activated.
Your first bill will show the standard advance charges for your service, from the date of that bill to the date of the next scheduled bill. It may be higher than you expect because it will also include package charges from the date your service was activated up until the date of your first bill.
From then on, your bills will only include the usual advance charge, including any line rental and call or TV charges, unless you've changed your package.