GDPR

Tenancy Deposits

I had a tenant who was served a Section 21 in January 20 relating to an AST ending May 20. The tenant did not pay rent for May 20 and 2 weeks past end of tenancy. The tenant denied owing rent due to covid and extra charges to remove rubbish from house and leaving garden like jungle. The Agent acted as middle man in the claim with the tenant first denying all liabilities followed by a submission for rent. The rent owing surpassed the deposit so I wish to proceed through the courts for the monies to clean up graffiti, remove rubbish and rescue garden. My Agent refuses to give copies of correspondence or transcripts of conversations I may need in court quoting GDPR. The TA is full of “Tenant shall inform the Agent or Landlord” and PD is available to identify in the sign off section of the TA. As the Agent was only acting as a medium in the conversation how can they deny either the tenant or landlord?