How to keep customers satisfied during periods of hypergrowth with Zendesk + Rentoza | Zendesk Speaker Spotlight In this episode of Zendesk’s Speaker Spotlight series, online electronics retailer Rentoza's Khosi Ncube describes the company’s incredible growth and how, by integrating Zendesk from the outset, it has been able to seamlessly take its customers with them on its journey. While hypergrowth may be a problem every entrepreneur dreams of, keeping customers satisfied while a new business is in a rapid period of growth is no easy task.