According to myibidder I won a snipe on Wednesday for item 280968466445 (Touchpad).

However my ebay.uk account is not showing any signs of this auction win. Can anyone advise whether I did win or not? And if I did, how I actually pay for the thing as there seems to be no way otherwise.

Thanks

There was an issue when eBay reported some item being won even if it was not.
That was quickly resolved since than.
I have a work-around for this as well in case if the same thing happens again.