hmmmm I put in a buy @ .028 for 14500...after the

hmmmm I put in a buy @ .028 for 14500...after the bid sitting @ .027 for quite some time... almost immediately...I THOUGHT the 12500 was filled @ .028 ..but I didn't catch it. although I saw the volume was then 15500...after being 3000...but it wasn't my order that was filled.... some time later, I replaced my order with 13500 @ .03 ...it never showed..and filled immediately.