For future use-- If you are going to ship without tracking, and for the most part I do without problems, you have to build the cost of the very occasional loss into your selling price.
It's called Cookie Jar Insurance, and in the long run the pennies or dimes you toss in your virtual Cookie Jar will save you angst and some serious money.
Not only by covering the very rate Dispute, but also by NOT buying expensive tracked shipping.
