Hello Truelyfair
Sorry to hear this has happened
From what you have described I can kind of work out what needs to be done
So you have an active Landline with us
The number you had was transferred to BT Open Reach
BT Open Reach has now been cancelled and the Number is sat with them now
We can bring this number over to us, but it does require BT Open Reach to be active
If not then sadly its not possible
Gareth_L