If you go to the New Mystery Shoppers area of the forum and read the topics that are "pinned" to the top of the list there, you will learn how this industry works. 99% of MS work is done by independent contractors, Typically, the client does not even know the name of the shopper whose report they get.
Long story, short : We ICs get MS assignments from nearly 200 MS companies and most require contracts that state that we will never make direst contact with their clients. So, if you shop Hotel X for MS company 1, X is 1's client. You submit your report to MS company 1, they strip out info that might identify you and send the report, or a digest or "score" to the client. You are forbidden from direct contact with X about you MS work, by your IC contract with the MS company.
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.