You answered your own question - you are stuck
Here is a quote from the VIP bundle page:
http://allyours.virginmedia.com/webs...ct.do?id=11029
Very Impressive Package: Services available in Virgin Media cabled streets only. Subject to network capacity. Minimum contract term applies. Available to new customers or existing customers taking an additional cable service (subject to status and credit checks).
You must, at a minimum, take all the services that comprise your bundle for your minimum contract term. If you change any part of your package, other prices apply.