MBNA Bank - continued

I received a response from Mr. A.T. at MBNA Canada Bank (aka Bank of America).
And here is what he says:

"Your information was sourced from the telephone directories in your region. If you go to www.canada411.ca & do a reverse phone number look up, you will find the exact record that we had sourced. These phone directories are public records that, for the most part, are managed through a company in Toronto called Cornerstone Group of Companies. We license these directories across Canada from Cornerstone for the purpose of marketing our Credit Card & other products."

Here are some of the clients served by Cornerstone Group of Companies:
Canadian Diabetes Association
Citi Cards Canada
Columbia House
Doubleday Canada
Enchantress Hosiery Corporation
EPIC Marketing Solutions
Heart and Stroke Foundation of Ontario
Multiple Sclerosis Society of Canada
ING Direct
Québec Loisirs
Reader's Digest (Canada)
Rogers Media
Xentel DM Incorporated

Okay, now check out Cornerstone's Products page. Cornerstone seems to be all about mailing list management, "email deployment" (aka Spam) and the like. I shall continue my quest and ask to have my personal information purged from their system. Here it goes!