When you put your company business 'in the cloud', you pays your money, you takes your chances.
Good luck.
/johnny
Try this link:
http://www.google.com/support/forum/p/Google%20Apps/thread?tid=63bea56874dcbde6&hl=en
Sounds like your issue...
Good luck.
They SHOULD be able to restore the lost mailbox from a backup.
If they can’t, fire them and host your own email, because they are useless to you if they can’t do something as trivial as a mailbox restoration.