Do not assume refreezing makes a temperature-abused product safe. Its condition, type and known handling history need to be considered using appropriate guidance.
What the observation tells you
The journey duration alone may not show what happened before collection or delivery. A bag can feel cool while some items have warmed more than others. Returning everything to a hard state removes visible evidence without restoring the original history.
A useful next step
Follow the product instructions and official advice, and contact the supplier where the goods arrived in doubt. Keep questionable food separate from stock whose history is known. Do not taste it to judge safety.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.