On the very first step I found I was missing a lot of copper and other items which I'd returned to the main and I blame myself for thinking this would exceed the cap without risk to the items. Lesson learned.
I then made sure to keep my mains mailbox empty for returning and stick to the alt getting full to avoid it happening again, however I've just got up to the mithril stage and after returning the items to the main in order to skill I've found that none of the items I've returned ever made it back to the main character after using the return function in the mail.
I'm not sure if anything can be done, but I felt it necessary to post here to find out what happened. I'd be really happy if the items can be retreieved but at the very least ensure this doesn't happen to anyone else, I've lost a great deal of stuff and I can't afford to replace them

Any help would be appreciated.
Actionpigeon.