A company runs a transformation exercise. It asked for employees to fill out answers against questions, which are submitted to a portal and assessed by a number of employees and scored. These scores, along with the rationale the assessors recorded, were used to put the employees into various roles in the "new model", as well as some on performance plans where the scores indicated improvement was required.
The company fed back the assessments verbally. They have, at the moment, withheld the scores and rationale/assessor comments from the assessed employees. They have been asked numerous times, and there is some anecdotal evidence that line managers are being asked to refuse such requests.
This is in the UK. What mechanisms exist to allow the employees to gain that data, if any? Can the employees ask for other data, like e-mails written about them or instructions given? It seems like a Subject Access Request or GDPR would help, but despite asking on these specific terms, the employer has refused to provide answers. Who should the request, if this was possible, go to and what would need to be included?