Some carriers can download the reefer data remotely at no cost, others have to go to a Thermo King or Carrier dealer and pay a fee.
If there is an issue and the reefer data suggests improper reefer temp setting or a mechanical issue then I will not charge the customer and not reimburse the carrier. The carrier can add this cost to the claim.
If there is no issue arising from the data then I will reimburse the carrier but do not usually pass on the costs to the customer depending on revenue.
If you need help interpreting the data let me know, I have been down this road many times