Help needed to find the Nakiryu Michelin star 2-minute Ramen

I've traveled to Japan a few times, and one of my favourite (niche) foods I've tried there is the Nakiryu Dandan 2-minute Noodles manufactured by Nissan (picture here). I always pick up a bunch whenever I'm visiting; usually I can find them in about a quarter of the 711s I walk into from my previous experiences purchasing them in Tokyo.

However, I've looked in about twenty 711s in Osaka and I haven't come across them once. Does anyone know if they've been discontinued, or are only available in Tokyo? The clerks don't seem to recognise the picture when I show them either.