Enquiry preparation
Fridge: agree who can authorise the request
For a fridge enquiry: Establish ownership, the person approving work and who can provide entry. Keep those arrangements with the service address so a technical enquiry is not delayed by missing authority.
We agree suitable work and arrangements for your actual appliance.

For the appliance you actually own
A safely visible temperature reading and its time are more useful than a guessed refrigerant fault. Describe the door closure, display and any visible frost. Suitable conventional domestic work needs assessment.
Why this belongs in the enquiry
The fridge reference, fitting and observation allow a more specific discussion. They do not establish a failed part or guarantee a repair.
Before arranging a visit
Confirm suitable work, proposed charges and access with the team. An enquiry notebook is preparation, not a reserved visit.