British Airways Customer Service Representative (CSR) interview questions

After applying online via the BA website, and then various online assessments, the interview, selection and referencing processes were carried out by an agent company rather than BA themselves. I was called to a hotel for an assessment, where they put us in groups and asked us to discuss some situations. We also took some written tests and carried out a role play exercise. A SAR later on revealed that I was marked down on some aspects that I feel that they should have been lenient on - things you're only expected to know if you have worked for an airline before, however I was still offered the role.