Just last week the brown truck guy comes to my door and he's carrying an old tube amp I purchased. The box has Fragile written on it, arrows pointing this way up. He's not carrying it the way the arrows would like him to, as I open the door he drops the box on its side from about knee height so he can pull the electronic signing box off his waist. I could literally hear the damage being done. I just look at him and say That's kinda fragile. He says My Bad..it's kinda heavy...sign here. Damage wasn't too bad, all the bolts holding the base plate and top of the amp together had snapped though.
I truly feel bad for the OP. It is such a headache to deal with, plus the loss of any money as well as the damaging of good speakers. Hope everything works out for you in a positive way. I will say that even with the few bad instances I've had with shipping companies I couldn't live a happy life without them lol. I depend on them for many things...I just wish they would be a little more careful.