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I have an Amazon account that's 8 years old and has over 500 orders on it totaling to probably over $10,000. I have never done SE on this account but have returned maybe 15 items over those years for legitimate reasons (faulty items, decided I didn't like the items etc.). I have never reported an order as lost. What do you think the approximate upper limit would be for an attempt at refunding a high value electronic item using the 'Did not arrive' method? They never ask for signature on delivery. This will be a one time deal so I want to make it worthwhile. Is $800 too high? Thanks.