which links to https://www.which.co.uk/news/article/the-truth-behind-smart-meter-myths-aoJeW4L7Fwmj
That article has no mention of any type of disconnection. The word "disconnect" does not appear in the article.
It does say that remote access to the meter is possible to remotely "repair" issues
""if it can't resolve the issue remotely, it should send someone round to inspect it for you""