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.