If you want any materials and have a means to distribute them, then contact the office.
If you want to form a student society and need me or another officer of NO2ID to countersign your application, so that the union knows you are part of a real organisation, then contact the office.
If you need to contact Youth Against ID directly then I believe
youth@no2id.net will work, but it is an entirely independent and self-governed group, so I'm not able to tell you (or understand myself) how they operate.