Just to let you know that a BT Retail Broadband customer will be automatically opted in for BTWifi (was called BTFon) if they became a customer since March 2009. A BT Retail Broadband customer prior to that date will need to Opt in to BTWifi (BTFon) to be able to use BTWifi/BTFon/BTOpenzone hotspots.
If the customer decides to Opt Out of BTWifi (BTFon) then their homehub will stop transmitting the BTWifi SSID but also they will not be able to use any BTWifi/BTFon/BTOpenzone hotspots until they Opt in to BTWifi (BTFon) again.
This is what the BTWifi Q&A websites says:
"How do I Use the Free and Unlimited BTWifi that I get with my BT Broadband?
If you signed up for BT Broadband since March 2009, you're already registered for BT Wi-fi, unless you've opted out. You can check your status, and opt in or out. Once you've opted in, you can get online at a BT Wi-fi hotspot using your BT Broadband email address and password."
Hope that helps explains it 🙂
Opting out of Fon does not stop you using BT wifi that is part of your broadband package, it merely stops the hub transmitting a hotspot.
As imj says, you've already been told that's not correct. To avoid any doubt you may have caused, here again is what the BT WiFi T&C for BT BB customers says:
Wi-fi access outside of the home is only available if you are opted-in to BT Wi-fi.
You're also wrong to imply that BT WiFi is a guaranteed part of BB packages, as those T&C also say this:
BT reserves the right to change or withdraw this offer at any time.
you cannot stop BTFON on later hubs unless you opt out. you can always use a third party router and still opt in but not broadcast BTFON/BTWIFI