Top tip. Dont cancel your current BB contract until VM have installed and you are happy with the set up.
Occasionally there can be a technical problem when they come to do your install that can delay the process whilst they have to do some work. That can take a few days or now and then if they have to get council approval to dig your pavement to clear an unexpected blockage - you can imagine that getting council approval can take weeks !
If you do have an issue and cancelled and expected VM install on that date you would be left with no service for a time. Paying for an extra month or so on your old BB service is s good insurance policy for that. VM wont charge you until its installed and up and running - and you can always cancel with no £ penalty within 14 days of install if it doesnt meet expectations.
-------------------- John --------------------
I do not work for VM. 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 +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.