if server have offline market scroll u can do self buy sell trick how to use;
1.Make shop for selling and put item and use scroll
image:
2.open other char and click to your market dont buy or sell nothing
3.open new l2.exe and write your id and password dont click ok
4.fast buy item and log again your char
i was try it 3-5 time 1 time susessed
gl&hf