The company exists but they DID NOT send you that fake check! That is a scammer who has, as usual, hijacked the name of a legitimate MS company for a fraud. If you deposit that check your bank has to "clear" the funds for you to access in a day or two. That's when you will be asked to keep a small part of the funds and either wire the rest to someone or buy some products for a large sum and ship them. About 15-20 days later your bank will be notified officially that the check was fraudulent and YOU will owe the bank all $2750, plus fees for a fraudulent check. You may hear also from police, and you may be put on a list that banks share, warning all other banks not to let you open an account.
Think about it. Why would any legitimate company trust someone they do not know with such a sum BEFORE that person had performed any work for them. In addition, typical strater jobs in Mystery Shopping pay about $5 to $15.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.