We have been able to pause both BT and SkySports online via https://www.virginmedia.com/help/thinking-of-leaving/talk-to-us
Now we can now also pause Premier Sports, LaLigaTV, BoxNation and RacingTV, however with these we can't do it online, it must be done on the phone via customer services.
Any problems ask the agent to look for their briefing dated 6th April called "Virgin TV: Further Sport Subscription Pauses"
Dave
The Service you do for others is the rent you pay for your room here on Earth - Muhammad Ali