Hi, j67wayne, welcome to the forum. Because mystery shoppers are required to sign Independent Contractor Agreements (ICA), which almost always include a confidentiality clause, we honor our ICAs by not revealing which MSCs have which clients. Our forum rules take ICAs into consideration, and our forum's guidelines prohibit revealing the clients of mystery shopping companies.
Please use the "edit" button at bottom of your post to edit and ermove either the name of the client or the name of the mystery shopping company.
To answer your question, I have not seen another company yet shopping the client you asked about.