[Sephiroth]

... and you need more than one of them.

Yes a call would seem necessary, but at the weekend you're likely to be talking to a chocolate teapot. All they'll do is send another tech who might be as useless as the last.

It would be best to post the problem (and your evidence) on the Virgin Media Forum site (community.virginmedia.com) and a few days later a competent person will try and sort things out for you. Their process will still require a tech to attend before networks can be called into this, but the file notes will contain your evidence.

Let us have a link to your VM Forum thread.