“We spent two years fixing [the problem of failed payments] in the last company and created a tech-enabled solution where we leveraged actual human beings to win back failed payments for subscriptions. And by doing that, we got a 5x offer higher than the initial offer because we fixed the failed payment problem,” Graham notes.

https://techcrunch.com/2021/02/17/gravy-raises-4-5m-for-its-service-that-helps-subscription-businesses-recover-failed-payments/