Tested adding a partner-led intro call before my paid course

Two partner organisations now send people my way, and almost none of them buy the course. I think the gap is that they hear about it from someone else and never get a conversation with me. So for the next six weeks I'm offering a 20-minute call with me before checkout, booked straight from the partner's email. If conversion doesn't move, the problem isn't the handoff and I'll stop blaming the referral.