I've two full yrs of NI credits for the years I was 15/16 and 16/17 (late 90's). I was working pt and doing my alevels, not claiming any benefits. Does everyone get these two years for free?
I've also other odd 2 - 3 weeks of credits in a fee later years but I've never been on benefits, jury service or anything else the list as resons on their website.