Welcome to this user forum.
They are not available at the moment, but read this post which has the price.
So the by disks on eBay are only to extend the network?
As far as I know you only get the SH2 if you take on the Complete WiFi else you will receive a Smart Hub (HH6). You can then buy a SH2 for £100. I don’t know the official line but Discs bought on a well known auction site should work with any SH2.
Only the black disks are compatible, not the white ones that you see advertised. The black disks have to be returned to BT if you opt out of the package, as they are only rented out as part of the package.
Not these below.
You need to remove the link. It is not allowed to post links to e-commerce sites.