I used to do something similar when I was rolling new chars. I would push some refined gear, pets, accs and pots up to em, unseal, and pull them down while I was in the training area for my noob char. nice way to fastrack the low levels when you are hitting stuff in there with lvl 32 gear. Anywo lost some of that kind of stuff once when a update was put into the game over a maint. Taught me not to store stuff like that to em inventory and leave it there. Always take it out of there is an upcoming maint.

If you have been away long enough for P/W to put in some game updates, your stuff could have gone into the same bitbucket mine did.
If you exploit quirks in the game, it can bite you in the a$$.

You can try submitting a ticket, but all you might get for your trouble is them wagging a finger at you saying "bad boy". NBot a big deal. who knows they might even be able to recover your stuff.