When I was new to selling on eBay I sold a cotton quilt batting and the lady never received it. I had mailed it through post office. I described the package to her including the design on the mailing label and what kind of a box it had shipped in. She realized that she had seen that package sitting open next to the post mistresses desk(It was a small town). When she emailed this to me I sent a full description of the package contents with a full description of the box, label etc. I told her to print out the infor and take it to the postmaster general in the larger city 30 miles away that supervised her city. She did this and the postmaster general took her email and went to the post office and found the open package by the post mistresses desk. She claimed the package as her own and he said he had proof that it wasn't. The post mistress was fired and arrested and was prosecuted for interference with the US Mail. It took several months because the package was evidence but she finally got her batting. I learned to never send anything that is merchandise without delivery confirmation or a way to track it. It was lucky that the boxes I sent my battings in were video tape cases that were addressed to my husband at his work and it was easy to identify the box as being the one I had shipped.