You have close to 1000 DSR ratings, so not much chance one person doing much damage. The buyer is a newbie; you could send them polite note saying that actually you are in Queensland and that you posted day after they paid, the rating is NOT for how soon they got it , but how fast you posted, and if it did take 11 days that is AP fault.
Are you sure they marked your stars down?
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Voltaire: “Those Who Can Make You Believe Absurdities, Can Make You Commit Atrocities” .
