Lineage 2 Classic - Where do you get an "Inventory Expansion Ticket Lv. 1"?

[Darkrai008]

In Lineage 2 Classic there is a skill you need to learn "Expand Inventory Lv 1". In order to learn this skill you need an "Inventory Expansion Ticket Lv. 1".  Where can you get this level 1 ticket?  It is NOT in the L2 store for purchase. And according to the L2wiki, this ticket is impossible to get in the current version of Lineage 2 Classic.  So I want to ask this community for help.  And ideally one of the L2 Classic moderators could provide some official guidance.

NOTE 1: The level 4 ticket is available for purchase in the L2 store, but I don't need the level 4 ticket.  I need level 1.

NOTE 2: The fishing guild member does not sell this ticket.  He sells something similar "Expand Warehouse", and at first I did a bunch of fishing to get this.  Unfortunately that was not the "Inventory Expansion Ticket Lv. 1".

[DukeGr]

It's in the L2 Coin Shop, Enchant Tab, click the icon left of the Adena to open it (bottom right of the UI).

 

[Calistai]

I was wondering this too - I can't find lvl1, and lvl4 is in the L2 store (or is that the only one?)