Package was not received .

A package worth of $900 was sent and shows delivered but buyer says never received . We contacted Amazon and they say it is sellers responsibility . This shipping label was bought through Amazon and no UPS account was involved , so UPS does not give us the chance to file a claim .

I noticed when purchasing shipping labels , that shipments are protected for Safe T claims and A-z , and have insurance . But I was not able to file a safety claim on this order .

Is there something Im doing wrong in here ? We had to refund the customer and lost the items.