The trick to successful lead nurturing is that BPO units must get progressive with the reminder emails
. You cannot send the same email repeatedly, expecting customers to be bulldozed into signing up. It's more likely that the customer will hit the delete or worse report spam against your call center email! That would mean that all your effort goes down the drain. That is why the telemarketing agents have to use better drafts that keep the interest in the deal alive. The curiosity is often the main element in lead generation.