eBay

suppose if i want refund the item that i don't like then what i should do?how the process works?

i want to buy 2gb memory card for my sony ericcson w810i mobile.but i don't know which memory card to buy?and from which seller i should buy so that i can get original one?also i want to buy HPM-70 handsfree for sonyericsson mobile.who sells the orig...