I received a letter from TD WATERHOUSE saying that i have win in a lottery draw and that am intitled for a big winning price. In the letter i wrote a number to contact it is 778-552-2175. They called me from a different number that is 778-316-8035. This number it has not been report.

I got a letter in the mail, along with a check for $4,000 (!?), telling me that I won a lottery draw.  It says it's from 'AIG INCOME TRUST', located in Calgary, CANADA.  

The letter says I won a lot (!) more than this, and it instructs me to call my 'agent' at 1-778-316-8035.  As yet, I don't know whether this is a scam or not -- but of course, I have my suspicions.  First I should see if I can cash this check....

An obvious scam. They want you to get the money to them before the check clears, which it won't!

It is useless and morally wrong to attempt to cash a check you suspect as being fraudulent. First of all, it won't clear and your bank will charge you a fee for a returned check. If it somehow falls through the cracks and clears, it's still fraudulent. Your bank will have to return the money and will deduct it from your account.

The proper thing to do is provide copies of what you received to your local post office and your state's attorney general (address easily found on the internet). They will take it from there.

This is NOT evidence stolen identity, btw.