I got an email from virgin at 2020 Sunday evening. They were asking for feedback, now the problem is fixed. I phoned home from my pulsnet mobile and sure enough, it rang. I will be contacting our friends to get them to verify.
To report a fault (not landline) send a text to 07533 051809 and wait for a response. Mon to Fri 8am-9pm, Sat 8am-8pm, Sun 8am-6pm
I reported the fault by text, only to be told that applies to broadband only.
I phoned to report, but was amazed to find you have to have a password to talk. Luckily, my wife had wtitten it down in her little black book.
We have been plagued with power cuts, so no home phone for many hours. We are using WhatsApp as our default communication. That allows a faulty landline to hide from detection. The Plusnet problem could have existed for months, without detection.
Thanks to virgin for a rapid response.