Reverse Egoboo

Shock! I just realized that Gmail has been shuffling my Amazon sales alert notices into the Spam folder. Since early December, I have sold 12 books unawares. Lest my Amazon rating be slammed south -- reverse egoboo -- I just emailed those 12 buyers to let them know what happpened -- and that, given their address, I'd send the book they bought ASAP. How'd I realize what had happened? Amazon sent me an email indicating that a buyer had requested a refund. What? Shock! This has never happened to me.