What if the debt a collector is chasing isn't even mine?

Paying to make it stop is the instinct a lot of people follow, and it's usually the wrong move, since even a small payment can be read as acknowledging the debt and can reset deadlines that were otherwise working in your favor.

Get something in writing to whoever's collecting, and hang onto a copy of it yourself. Underneath "this isn't mine" sits a handful of different actual situations, someone else's identity was used, your file got mixed up with a relative's, the account already changed hands once and the info is stale, or it's simply a data error on the collector's end. Which one applies changes your next move, so it's worth pinning down early rather than assuming they're interchangeable.