My brother is a student and we've presented the club with everything asked for. Supporter services claim his account is marked as a full-time student... but they still messed up with sending out our Bournemouth cup tickets despite confirming they would post them, so we had to collect duplicates down there as nobody at the club knew where our tickets were when I called. Again today it states that tickets would have to be collected, seems odd when all information has been provided as asked.
What did they ask for?
I assume it was some form of formal documentation (as it says NUS) but plenty of Non-Students can get NUS Cards extremely easily, that's all.