Welcome to the Community, I'm so sorry to learn about the problems you're experiencing with your phone line at the moment.
I've been able to locate your account and run some tests on the line from our end, we're not detecting any errors at the moment although some sections of the line are uncontactable.
With that in mind, I'd like to arrange for an engineer to come and take a closer look, if you're available. I've sent you information regarding this in a private message, which you can view by clicking the envelope on the top right of this page.
Apologies again for the inconvenience this issue is causing, we're looking forward to getting this sorted.