I don't think you'll ever sell it......expecting someone to pay more than you actually paid is silly......
probably should have posted it here
https://www.mobileread.com/forums/forumdisplay.php?f=124
Probably won't matter where you post it though.... looks extremely fishy to me......you bought it in Santa Monica, are selling it from Singapore, and according to your ebay profile, you've never sold anything.....