Hi alchats14, if you want Virgin Media to pay any attention to an issue, you should raise an official complaint: https://www.virginmedia.com/help/complaints
They may offer you some pathetic credit off your bill as a "resolution" to close the complaint case quickly. If you refuse these "resolutions" you can sometimes force them to actually go and fix the problem so they avoid things escalating to the Communications Ombudsman (FYI, the Communications Ombudsman is not an independent body, they're more like an outsourced complaints-handling company that several ISPs pay to handle complaints. The name is misleading as it falsely implies that they are independent regulators, when really they're paid by the ISPs to protect the ISPs from real regulation). However, Virgin do tend to treat complaints more seriously when they reach that level, so your best bet is to follow the official process.
Two months after you make your official complaint to Virgin (see the link above), if the issue has not been resolved, you can escalate to the Ombudsman. During this time you should focus on collecting evidence of the network being faulty and "not fit for purpose".