So, Plusnet, what are you going to do as I am STILL getting bogus 123 calls?
To be fair, it's something Plusnet have no control over - it's BTOR and their contractors (mainly the latter I suspect) who are doing this instead of following official methods of checking working lines when looking for spare pairs.
It's been going on for decades, but has only become apparent to customers since the introduction of itemised billing.
It's annoying for each individual who has to convince their ISP that they didn't make the calls, but there doesn't seem to be a willingness by the telecoms industry as a whole to do anything about it.
As you will have noted in the referenced Which? article, Openreach didn't even acknowledge that there is a problem.
If you want the best seat in the house, move the cat FTTC 40/10 Billion 8800NL BT technician (Retired)