Shipper trailer damage question.

Shipper forklift driver damaged my reefer trailer roof,I took pictures and talked to the HR of the company who did promise to fix my trailer with a written email!Shipper told me to get atleast two quotes from different repairers which came out to $6800 and $6950.As usual shipper took the lowest amount for fixtures,It's been since January 26th of 2022 my trailer was at shop and no progress for repairs.I called the shipper and ask if the check can be cut under my name,but she says thats not the procedure and asked me to take my trailer to Cincinnati which almost 2400 miles away!!!What should I do am kind of new to this situations and i have lost income!!!Your answers will be highly appreciated thank you.