I have visited many chinese or russian places where they give receipt for insurance. Gracia, as recently as ... today.
Bernadette/Tanya (Tatiana as is her real name) gives receipt. Carmen gives receipt. Many others. In fact, don't expect a real massage if they can't give receipt (that means they did not follow an approved training). But receipt is no guaranty either. I went to that place last year in the vincinity of Beaubien/de Lorimier where the receipt was signed by the "owner" of the place but the "therapist" had no clue what a massage is, she only new how to rub her boobs on the back of a dumb man with overloaded jewels.