Complaint Review: Sources For Research Surveys

I got a check for 1500.00 from a company that says Sources For Research Surveys instructing me to cash it, then take 1000.00 to Walmart and purchase a Re-Loadit pack.  The 200.00 is for shopping in the store and then 300.00 for me to keep.  There are several red flags here.  First of all, the envelope is plain with my address label crooked.  There is no return address and the stamp is Canadian.  Next, the check is drawn off a Credit Union in NJ. There is no company name on the check(the bank information is where the company name should be). Beware!!