Hi Dave5130,
Thanks for your post and welcome to the community.
Apologies for the issues faced with the landline, just to touch on the subject of the package, you'd be eligbile for more discounts on the package with having the landline.
If our team were to remove the service during your term then there could be early disconnection fees and the potential of the discounts being minimal.
However we can look to resolve the service? Can I ask is the landline connected to a master socket? Also have you tried another handset with it?
Let us know,
Kain