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Nope. Just a non full time student with an NUS card, which is perfectly above board. You just need to register for a course which is affiliated to NUS. Some of these courses cost 99p. Then you get your NUS card and it's 10% off at the co-op, half price Spotify, free Amazon Prime, student prices at the cinema, 25% off on Grand Central Railway etc etc.
2 cartons of milk at the co should be £2. I get them for £1.80 with my NUS card and then 5% off that with my co op members card. Once I get my refund it's £1.71.