Welcome back to our Community Forums! Thank you for your post and I'm very sorry to hear that you're experiencing some landline connection issues! I understand that this can be very frustrating.
After looking at our systems, I can see that there is a known local issue that is impacting landline services in your area. The Fault number is F009805490 and the current estimated fix time is listed as today 03/05/22 at 14:45.
Apologies that this issue is impacting your services. You can always contact our automated service line on 0800 561 0061 to see if this issue is listed, so you can keep up to date on it. Let us know how you get on after the estimated fix time. We'll be happy to help further if needed.