Call it in -- 08.00 midweek, is the best time - although people are still reporting getting through fine at other times with no long waits. Go to “Retentions” on 150 or 0345 454 1111 - options 1-1-4-4 "Thinking of leaving" when you should get through to the people who can help you cancel.
Be aware though you will pay a substantial early cancellation fee. Also note that VM (and all other BB suppliers) do NOT guarantee wifi connections - its only speeds to the Hub that are "guaranteed", and testing on wifi is not recogised as an option - too many variables - so you need to test it on ethernet cable connections.
If you want help diagnosing and fixing your wifi issues from folks on here - post up more specific details here.
-------------------- John --------------------
My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
***** If you think my answer has helped - please provide me with a Kudos rating and mark as Helpful Answer!! I do not work for Virgin Media - all opinions expressed are of my own and all answers are provided from my own and past experiences. Office 365, Dynamics CRM and Cloud Computing Jedi