Ask about the return policy when you do the purchase.
I made the purchase. I then went to a nearby restaurant for a shop. While I was seated, I set the phone up and called my real cell. The calls dropped. After an hour went by, I returned phone. I was refunded everything except for the salesman's commission, which the MSC refunded.
"I told myself to quit you; but I don't listen to drunks." -Chris Stapleton
Post removed as it violates the Forum guideline which states, "Do not reveal the clients of mystery shopping companies". Additionally, it is an ICA violation to name both the MSC and client.