NPC ate items without giving item

[TripSin]

Was doing Stein of Moggok quest (Exotic Drinks). Had already done it once before, but sold my previous Stein. I gave Gregor Nasin the 4 items for the compendium - nut, fish, jum, and tonic just like I had done last time. This time though he just takes the item but doesn't give me the compendium! I don't already have a compendium. Guild mate said to do /petition so I tried that but haven't gotten a response. Anything else I can do about this to get my items back? I'm upset now and it's making me me kind of not want to play anymore ;_;