I'm fully aware. Most artists, especially those not hurting for money like Meth, don't bother to go and check to see where the money is.
Also, shipped albums count. The distributors paid the label, the money exchanged hands. Unless a grip were returns, they got theirs.
Meth went gold once (Tical 0) and plat 3 times (Tical, Tical 2000: Judgment Day, Blackout). All of these were certified ages ago. Unless there is an accounting, these could all be multi by now, The label won't do it, because that's admitting there may be money to trace. If Meth says nothing, they will keep collecting the money and staying silent, even if he recoups.