I phoned the number on the PC World website store finder; got through to a central switching desk:

them: "we don't sell Nokia phones"
me: "it's not a phone"
them: "we don't sell Nokia items"

So, with some Google-fu, I found the landline for the Coventry store and rang them.

them: "We have 2 in stock, but would have to physically check" (obviously stock control systems don't actually work - don't get me started on the 48 items in Ikea which didn't exist

So, the guy said he'd check the stock room and get back to me. 3 hours later(!) I was impressed that I got a call back: he couldn't find them :-(