TITLE: GCN CIRCULAR NUMBER: 13308 SUBJECT: Correction to GCN 13307 (GRB120521B) DATE: 12/05/21 10:47:47 GMT FROM: David Bersier at Liverpool John Moores U D. Bersier wishes to apologise for any confusion related to the wrong title of GCN 13307. The GCN Circular reports observations of GRB120521B, not GRB120521A. The title should read: "GRB120521B: Faulkes Telescope South observations". I thank C. Guidorzi for drawing my attention to this mistake.