You could try forwarding the rubbish from the scummers to the free service by phishing.gov.uk via firstname.lastname@example.org get them blocked at source. I've been doing this and it certainly seems to have worked - I'm hardly getting any trash through at all now, even in my spam folder these days. I was getting up to 20 a day at one point. One more thing - DON'T click on "unsubscribe" on any scam mail. That only confirms for them that you're on an active email. They can happily sell on the address to other scummers.
Rather than simply forwarding the spam-crud directly (you could try though) as this might get blocked by Virgin's filters🤔🤨 !!! ... I tend to "Save-as" a *.eml file and forward the saved file(s) (as a batch) to the email I gave above. No need to subscribe and it's automated - sending you a brief email of confirmation as soon as they receive your files (so no need to write anything in the email you send).
It took a few sendings of a number of crud initially, but whoever was sending it out soon got stomped on by phishing.gov by the looks of it😁"