Quoted from AstonEnthusiast:While I agree, from a consumer point of view it's the sellers responsibility to get the goods to the purchaser. Whether they use a carrier pigeon, FedEx, UPS or Uber, it's up to the seller to align with a reputable company to ensure the goods which were paid for arrive.
As both buyer and seller I see both sides as well, however when filing a claim usually the shippers will not even talk to the individual making the purchase of goods.
Kick it up to a district manager and start squeezing some nuts.