leiard,
The uniteba site you mention is the Amicus/cc89 website. Since the strike it has gone very quiet and only now publishes notices from the parent union for the members that remain in the union. I think because some reps have been suspended and others are not being released from flying duties both unions are struggling to staff their offices let alone keep the websites updated.
The BASSA website has apparently published the same Unite notice that you reproduced but their site is closed and only members of Bassa can view it. Their site is more active mainly because it has a forum for members and this is where DH posts all his strange posts.