Have seen this for sale on Ebay, and after a bit of investigation realised it is actually this Argos one - even the bumf about it is copy-and-pasted from the Argos website. And it is £20 from Argos rather than the £100 being asked on Ebay but thats not what I have the biggest issue with.
Real problem is, the seller is saying its ok to light a woodburning stove inside it! Which is really dangerous - there are some tipi tents out there that are fire retardent treated so you can do this, but the Argos ones are not among them.
Please if you have bought one of these don't try to light a fire of any sort in it, whatever the Ebay seller says.