DebtSettle: https://debtsettle.co 

DebtSettle on Product Hunt: https://www.producthunt.com/posts/debtsettle-by-juris

Hey everyone. Like I said, excited to announce DebtSettle.

Debt collection harassment is a huge problem in the United States. Last year 40 million people said they were contacted about a debt they didn't owe. And 1 in 3 people have a debt "in collection," meaning someone other than the original issuer is trying to collect. In this case there are very specific laws about how those collectors are allowed to behave.  Our letter triggers these laws, and our delivery tracking provides you with the evidence trail you'll need to take further action if collectors continue to break them.

Here's great piece by Last Week Tonight on the Debt Buyer/Collection Harassment problem: https://www.youtube.com/watch?v=hxUAntt1z2c