Hello Robjohnallen
Sorry to hear of the problems you're experiencing contacting the team, we're really busy at the moment given the current situation but the teams are working hard to get to all customers as quickly as possible. We appreciate your patience during these difficult times. We appreciate you taking the time to post this on our forums and welcome to the community!
You can give the team a call on 150 from a Virgin Media landline or 0345 454 1111 option 1, option 4 then option 4 this will get you through to the cancellations team who will be able to look into this further for you.
As stated above the lines are really busy. You can also write to us at the address in our terms and conditions https://virg.in/legals requesting to give your 30 days notice.
Rob