Hey Alex, Churn Buster (http://churnbuster.io/) is available via Stripe Connect to solve exactly this problem. We're in private beta right now, so please email me at [email protected] if you'd like to take it for a spin. We've got a number of paying customers already (including some folks who previously had their own basic webhooks integration) and they're all saving much more in rescued transactions than they're investing in the product. Also, it's a 30-day free trial, so you literally can't lose! :-)