Part 1 - Part 2 - Part 3 This is part three of our DROPBOX Sample series, showing how one company is managing increased credit card fails, otherwise known as involuntary churn, in their customer communications. In part one, Dropbox attempted to obtain updated credit card information. In part two, they attempted to create urgency by upping the ante and warning of a service downgrade. In this final sample, Dropbox is fulfilling its promise in its previous communications and notifying their subscri...