The real company has a hyphen in the name. Here is their site:
[
mystery-shoppers.com]
There's also Shoppers, Inc:
[
www.shopperjobs.com]
I've done shops for both, and both are legit. What you're describing is absolutely a scam, though. Nice catch and thanks for the warning.
"The future ain't what it used to be." --Yogi Berra