"Asking a seller to undervalue their product on the invoice exposes them to a potential loss in the event of shipping damage as shipping companies generally will not payoff more than the items declared value." - Why will a seller need a payoff? Nobody is foolish enough to ship an item before he receives the full payment for it. If a shipment is lost, it's a buyer who suffers.
"Declaring a lesser value is fraud" - Lesser than what? What's the reference point? If two people agree on a price, it's their private business, nobody can override their decision. If you want to sell your $800 amp for $200, and a buyer agrees to buy it for $200, it's nobody else's business.
"Declaring a lesser value is fraud" - Lesser than what? What's the reference point? If two people agree on a price, it's their private business, nobody can override their decision. If you want to sell your $800 amp for $200, and a buyer agrees to buy it for $200, it's nobody else's business.