I Forgot I already had Now TV with my BT account I do not want to cancel Now TV but do not want to pay for it twice.
Yes, but what have you done exactly?
If you have taken out a trial directly with Now, just cancel it, all four steps, within the seven days (and best to cancel before the sixth) and you will not have to pay anything.
But if this isn’t what you have done, please tell us what it is you have done.
PS: I’m beginning to see why BT try to ‘lock’ the Now apps of their subscribers to their BT TV Now account numbers 😛