Complaint Review: Monster Job Agency

I filled out an online application for "Mystery Shoppers Needed" and it was almost 3 months later, I received a check this afternoon 10-24-09, in the amount of $2500.. I took a look at the envelope, no senders name nor address.. but there was a Canadian Shipping Code ( Zip Code ) I also looked at the check, no Bank address, Just the Bank name and City and State.. No phone number, or anything,  well, i find the bank website, and and their number.. I called it and they told me that the account number was from a previously closed account that was no long active..I also looked at the paper that was enclosed with the check.. I noticed there was a couple of different phone and fax numbers...(601) 767-7071, which  is a landline based out off Jackson, Mississippi, and (805) 725-3767,which is a land line, but it is based out of Santa Margarita,California..and (450)-675-0438, which is based out of Quebec,Canada..Plus there are numerous typagraphical errors,(sorry for the misspelling of some words) im just highly aggravated at the moment, because I almost made the mistake of depositing this check...So, please be aware if you get an envelope with  "appuyez la sante mentale  support mental health  H4T 1AO 103" with no other identification from sender..thank you for your time,Dustin J.Oliver