Caliber Collision

On 4/20/2020 I dropped my vehicle off for repairs in an accident I was not found at fault in. Turns out the other insurance company did not cover part of the cost at no fault of my own. I proceeded to inform them of the issue and they were compliant at first. I proceeded to inform them that my insurance company was going to cover the cost difference. This was three weeks ago. Once they received confirmation that my insurance was going to cover the difference, they had not released the vehicle to me. Instead they said they would deliver it but have not delivered on that date. They are instead trying to charge me a storage fee while still holding onto my vehicle when I asked for the vehicle to be released to me. I provided what I needed to for proof but nothing had still been done.