Missing silver...

Hello.

i have a missing silver so i hope you guys can help me.
this is what happened, i put a pre order in urugon shoes for 849m. then i have concentrated magical black stone armor(161pcs) and a 350+ memory frags and bunch of other armor posted on mp. so when i collected all the sold items and canceled my pre order, i got 1,586,000,000(not the exact number) but i remembered its around that much. then i put all of that money to pre order the urugon shoes again, but nothings happening. i cant pre order it. so what i did is, i exited the game and log back in, then i tried pre ordering again and noticed that my money in storage become 1,366,775,762. hope you guys can help me. i know its not that much but i spent hours and hours farming ancient crystal shards for memory frags to sell and other things to sell so i can buy equipments. thank you and i hope you guys help me with this. have a good day/night!