A linkshell member told me the other day that a GM said to him that they don't keep item history data.

This means if you delete, sell or drop an item they can't return the item as they don't have any data to know if you had it to begin with, which explains those people who have sold their U/U items and not been able to get them back.

Obviously if thats the case it would apply to guildleves as well I would imagine.

I find it a bit hard to believe that any MMO could run without player based item history its just asking for trouble.