What’s the betting the mystery vintage is the recently re-released '01 which lots of us snapped up at good prices from Waitrose Cellar and other retailers.
Great concept, though at 12.5 GBP for two 68ml pouches that works out at the equivalent of ~69GBP per bottle. With mailing etc. it is reasonable if not stellar value. Worth also measuring 68ml into a wine glass to see how much you get. I’d say probably not enough for two of you to taste.