I have a National Insurance Card from when I was 18 or so, in the UK. I’ve had it in my wallet since then. And yes, it’s cracked and broken, and well, basically looks like I’ve been put through one of those car squashing machines.
So, how do I get a new National Insurance Card? Who do I call? Where do I go? Well that link is what I found. I followed both links, and searched in both, and found pretty much NO information on applying for a replacement card. How helpful.