Yes they do sometimes especially if the fault in your connection is injecting noise into the line, which the engineer can tell from the cabinet and in the cabinet it will be reference to the house address.
As long as he had a Virginmedia badge then it is okay.
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks