When I first entered the life insurance business, we were taught this principle from marketing guru Richard Weylman:
7 contacts to a sale.
The point was that on average, we would need to be in touch with a prospect 7 times from the initial approach, to when they signed an application. I found this to be for the most part true, and learned a bit more when I started to apply it:
All contacts are included: in person, phone, mail, text, email.
Obviously, some clients, and some sales, would require more or less contacts.
It applies to the marketing of products and services in many industries, not just life insurance.
That includes healthcare technology like Procle.
So, unless it is clear that a prospect is not interested, stick with them. Develop a nice way to stay in touch. Each contact will bring you closer to an enrollment.