That net loss in VM broadband customers is accelerating (BT is seeing similar).
In fairness VM complaints have broadly trended downwards year on year (from an eyewateringly high starting point) and Lutz has today confirmed the (fairly new for VM) HQ focus on getting official complaint levels down https://news.virginmediao2.co.uk/our-laser-focus-on-customer-service-is-paying-off-but-we-arent-stopping-here/
The trend I notice on here is that customers don't want to wrestle with the bot triage on the helpline and frequently just give up trying to speak to a real flesh and blood human being in despair and post on here instead to see if fellow customers can help them out. If they never get through to customer services then every such abandoned call is an unrecorded failure in first call resolution.
I reckon this is why Plusnet is storming the customer service and complaints rankings and also why VM customers should take the plunge and switch to a better provider with ready access to real humans who, in addition to being real and human, also know what they are doing (A&A, Aquiss, IDNET, Zen).
I have had generally very good service from the VM forum team on here but I don't sense huge recognition of the team in Lutz's little blog post.