Grand Financial Services Market Survey Sweepstakes Lottery Have recd' several letters in the mail inclusive with check for 4,450 telling me I am a winner contact my claims agent Edmonton, Other

Recd' a letter in the mail with a check,  telling me I had won a  lottery which is ridiculous since I hate gambling. The letter  said the whole amount I had won was 120,550.00 will be sent through a special partner  courier service in the form of a certified cashiers check.
 My tax agent is Vivian Harrison 2546 Voss Rd London UK, then I had to contact Steven Ross or Jessica Wilson my claims agents  to start the claims process 1-77862-4899.
The letter said  do not act on the letter till you speak with claims agent.
This is the second letter of this type mailed to my home address.