@Anonymous User
Were you trying to watch Sky Sports Football?
You don’t get that, you only get these 5 Sky Sports channels: Premier League, Action, Arena, Racing & News
Set a Payment PIN on your account so that no-one but you can buy memberships on it. Check your bank accounts monthly for any other unexpected payments to Now. That way you can at least nip them in the bud, while you and Now figure out whose fault they are.