Freightliner front cab mounts

I went into the shop to get my cab front cab mounts replaced. When I got the truck back the passenger side had some damage. It was creased / dented at the top and bottom corner of the passenger side door frame. The shop as of right now is denying any involvement to this damage. Is it possible when they jacked the cab up to replace the mounts the cab tweaked causing the damage? Attached are some pictures any thoughts?

The bottom dent was worse. I pulled it back out and used a rubber mallet to straighten it out the best I could.

 

If your rear cab air bags over inflate can that cause this damage too?

 

Well it seems they are sticking to their guns with denying the damage. I'm not sure what to do about it. It really has me fired up because last month I had $8500 of body work done to it. Now this crap. I guess I will have to consult a law firm to inquire if I have a legal case against the repair shop.
I am 100% positive the damage was done there. I think just about every owner operator on the road knows where every scratch and dint is on their rigs. The just don't appear out of thin air.

 

I just had the truck back to the shop the other day. I left the dash cam running this this time. I have some very interesting conversations on tape that will help me prove my point. Just for craps I took a box cut out 2 doors, stapled 3 corners to a block and lifted the unstapled side and the box bent right where the damage is. Proof enough for me!
Oh also they were making fun of me for driving an 18 year old truck over the road. What's the big deal I maintain it well. Does anyone else on here drive an old truck for a living or am I the only one?
Last year I spent $32,000 at this shop. I guess they have lost my business!

 

Thanks special K I don't plan on giving up.