"now I believe this is something else. "
Is the account getting a better rate receiving over $3,000 a month?
If so, you are entitled to a better conversion rate (a smaller spread charged by PayPal for larger accounts). That policy was put in place over a year ago -as a result of the Canadian Seller Profitability Forum (which I attended) in Toronto the previous year.
For more information, please check this http://www2.ebay.com/aw/ca/200805011002562.html