Quasar suggestion
Your friend Cathy might achieve an interesting result by arranging to
have an elderly lady - let's call her Miss Lillian -
living alone send Quasar a letter with the following content:

1. Her neice Cathy showed her the Quasar brochure but didn't believe.
(assuming Cathy wrote for the brochure in the first place).

2. She believes it, because she also read about it in Parade.

3. She needs a robot badly, because she won't be able to take care
of herself for many more years.

4. Cathy and all her other relatives are just interested in her money.

5. Please send more information in a plain envelope, so her nosey
neighbors won't tell her relatives who won't want her to buy the
robot, but her money is her own and she can buy what she pleases.
(To establish that the swindle can occur without interference).

6. If the 24 hour model isn't ready yet, perhaps she should get
three of the 8 hour models. (To establish wealth).

The elderly lady can be fictitious as long as the matter is in
a correspondence stage, but the police should be invited to
listen to the actual interview that determines Miss Lillian's
psychological profile for compatibility with the robot.