Thanks for coming back to us @brockett, we would need to arrange a technician visit for this to be looked into further.
I can arrange the appointment from here but would need to confirm a few details via a private message, that I will drop over in a moment.
Please look out for the private message and we can get started.
Unfortunately all of phone lines are being changed to fibre, which is the same as the rest of the industry as per the government regulations due to the closure of the old phone network.
More information about this can be found here and more information from Ofcom here.
Regards,
Steven_L