eBay

I'm concerned about my fixed items, What can i do to increase my fixed items sales ?

when someone ask a refund before the estimated time; how to react to them?

whats the meaning of "Total selling cost" ? can anyone clarify this broadly?because some of my goods sold for $1.25 , $0.99 in that range... for some they took total selling cost $0.13 and for some $0.48..but they are all same..colors are only differ...