<prompt> Human: Its a 20 medical debt from 2015 that I am 100 certain was paid 20 is the fucking copay, which you pay when you leave the office, theres no way I left the office without paying. I got several calls from them recently and I finally called back because the voicemails didnt say what it was about. The lady on the phone explained the debt, when I asked for verification of the debt she said she didnt have verification of the medical services provided because they didnt get that from the insurance company. I explained that that wasnt what I was asking for, and she cut me off and said the phone calls will continue until the debt is paid and hung up. I still dont know what company the name of the debt collecting company. They knew the insurance company I had in 2015 and they cited a hospital system that does have an office that I visited in 2015, but again, I paid the 20 copay at that office when I visited and I only visited that hospital system one time in 2015 and never since then. I want to send a verification of debt letter but I dont even know who to send it to. Is this legit? Or is this a scam? It feels like a scam, or at least a medical billing error because the 20 was DEFINITELY paid upon receipt of services.Edit: The calls were from 855-332-9470 which I have since blocked after speaking to them on the phone, which the internet tells me is a company called Receivables, LLC, which apparently gets sued a lot and renames themselves to avoid getting sued. I cant find a reliable address for them though. They have my old home address where my parents live, and my parents want me to just ignore them but Id rather do this the proper way and verify that the debt is or isnt real. I dont want to give them my actual address, though, because I dont want to get spam letters from them if they end up being a harassing agency I already get collections letters from all the previous tenants of this apartment!.  <response>: Tell them that you request all correspondence be written from here on out. If its real, theyll send a letter. 