Delivered item lost inside the delivery box

Time: 4 p.m. 6/10/2013 GMT+1
Frequency: Once (Did not reproduce)
World name: Ragnarok
Character name: Jandelle Navarre
Race: Elzen Duskwight Female
NPC name: Delivery Moogle
Monster name: None
Class/Level: Black Mage level 48
Party or solo: Party (2 members)
In-game time: Can't remember
Area and coordinates: Northern Thanalan, Cerulean Processing Plant (X:20 Y:20)
Steps:
1. Opened the "Unopened mail" tab
2. Opened the unread mail (with an item, Astrolabe HQ, inside)
3. Pressed "Take all" button
4. Received an error message "Unable to execute mail action"
5. Pressed "Reply" button
6. Wrote and sent reply
7. The game put the received mail into the "Opened" tab
8. Switched to "Opened" tab
9. Opened the mail and the item was no longer there (nor was into my armoury chest nor into the inventory)

Connection Specs
- Type of internet connection/provider: ADSL
- Modem maker/model number: SITECOM modem router 549 turbo

PC Specs
-=-=-=-=- System Information -=-=-=-=-
Productor: Hewlett-Packard
Processor: Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Installed memory (RAM): 4 GB
System: 64 bit system
OS: Windows 7 Service Pack 1
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Laptop Model Name: HP ProBook
Laptop Model Number: 4520s

Gamepad Manufacturer: Microsoft
Gamepad Model Name: XBOX 360 controller for Windows
Gamepad Part Number: -

Browser Information
- Name and version of the browser currently in-use: Google Chrome Version 30.0.1599.69 m, Mozilla Firefox Version 24.0
- Internet Explorer Version: 10

Thank you Jandelle for posting your concerns about lost items through the delivery box. I have made sure to submit all of your information to the development team, and they will thoroughly investigate this matter, based on your report. Unfortunately, I cannot guarantee that a direct response will be posted on this thread, but I do recommend checking Here or Here for any details regarding the development team's investigation.

Thanks for your report. Good luck and have fun!