Union wants answers from CXC Mary-Anne Redman, President of the Barbados Secondary School Teachers Union (BSTU). (Photo Credit: barbadosadvocate.com) Concern has been expressed about reports that there are students who have not requested reviews, but have received improved grade amendments while students who have made review requests are receiving grades that demonstrate no change at all in their original CXC grades. The concern was made known by President of the Barbados Secondary School Teachers Union (BSTU) Mary-Anne Redman last week Thursday, while speaking during an online press conference held by the Caribbean Coalition for CXC 2020. Redman also said teachers want to know who reviewed the School Based Assessments (SBAs), and whether they are the same teachers who originally corrected them.