In the future, never appeal a Notice to Driver (NtD) until you have received the Notice to Keeper (NtK). By law, the NtK cannot be sent until at least 28 days after the NtD was issued if they want to hold the Keeper liable.
To send the NtK, the parking company must request the Keeper's data from the DVLA. This request breaches your GDPR rights under the Data Protection Act because it violates the KADOE contract, as the parking company lacks a lawful basis to issue Parking Charge Notices (PCNs) if your lease or tenancy agreement has supremacy of contract.