All right USPS experts, I shipped a Flat Rate Priority box of 30 comics which has been stale since 7/27. I am about to file a claim to recoup some of my costs via insurance.
Considering these were comics purchased over the course of years, what do I do for this step (via https://www.usps.com/help/claims.htm#) in order to get paid? (Not to mention they have no idea what is in the box to begin with, so not sure how, if I magically come up with 30 receipts, they know that is what is in there.)
Proof of Value
Proof of value is the cost or value of an item when it was mailed. Any of these can be used to show proof of value:
Sales receipt
Paid invoice or paid bill of sale
Statement of value and/or estimates of repair costs from a reputable dealer
Credit card billing statement
Receipt of costs incurred for reconstruction of non-negotiable documents
Printouts of the online transaction identifying the purchaser and seller, price paid, date of transaction, description of item purchased, and assurance that the transaction status is completed